+<tag/Function/Hide the mouse pointer.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/void __fastcall__ mouse_hide (void);/
+<tag/Description/The function hides the mouse pointer. It manages a counter
+that is shared between <tt/<ref id="mouse_show" name="mouse_show">/ and
+<tt/mouse_hide/ so that every call call to <tt/mouse_hide/ must be followed by
+a call to <tt/<ref id="mouse_show" name="mouse_show">/ to make the mouse cursor
+visible.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_show" name="mouse_show">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_info<label id="mouse_info"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return the state of the mouse buttons and the position of the
+mouse.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/void __fastcall__ mouse_info (struct mouse_info* info);/
+<tag/Description/The function returns the state of the mouse buttons and the
+position of the mouse in the <tt/mouse_info/ structure passed as parameter.
+<tag/Limits/<itemize>
+<item>The <tt/mouse_info/ struct is a superset of the <tt/mouse_pos/ struct,
+so if you just need the mouse position, call <tt/<ref id="mouse_pos"
+name="mouse_pos">/ instead.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_buttons" name="mouse_buttons">,
+<ref id="mouse_pos" name="mouse_pos">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_install<label id="mouse_install"><p>
+
+<quote>
+<descrip>
+<tag/Function/Install an already loaded mouse driver.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ mouse_install (const struct
+mouse_callbacks* c, void* driver);/
+<tag/Description/The function installs an already loaded mouse driver and
+returns an error code. The <tt/mouse_callbacks/ structure passed as first
+parameter contains pointers to routines needed to move or hide/show the mouse
+pointer. Defaults for these routines are supplied by the library, so if you
+can live with these defaults (which are platform specific), just pass a
+pointer to <tt/mouse_def_callbacks/. The function may be used to install a
+driver linked statically to the program.
+<tag/Limits/<itemize>
+<item>Not all drivers are able to detect if the supported hardware is really
+present.
+<item>After installing a driver, the mouse cursor is hidden.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_load_driver" name="mouse_load_driver">,
+<ref id="mouse_uninstall" name="mouse_uninstall">,
+<ref id="mouse_unload" name="mouse_unload">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_ioctl<label id="mouse_ioctl"><p>
+
+<quote>
+<descrip>
+<tag/Function/Call the driver specific ioctl function.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ mouse_ioctl (unsigned char code, void* data);/
+<tag/Description/The function calls the IOCTL entry in the mouse driver,
+which is driver specific. The <tt/code/ parameter will choose between
+different IOCTL functions, and the <tt/data/ depends on code. The
+function returns an error code. The purpose of this function is to allow
+for driver specific extensions. See the documentation for a specific mouse
+driver for supported ioctl calls.
+<tag/Limits/<itemize>
+<item>Calling this function is non portable, because each driver may
+implement different ioctl calls (or none at all).
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_load_driver<label id="mouse_load_driver"><p>
+
+<quote>
+<descrip>
+<tag/Function/Load and initialize a mouse driver.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ mouse_load_driver (const struct
+mouse_callbacks* c, const char* driver);/
+<tag/Description/Load a mouse driver into memory and initialize it. The
+function returns an error code that tells if the call has been successful. The
+<tt/mouse_callbacks/ structure passed as first parameter contains pointers to
+routines needed to move or hide/show the mouse pointer. Defaults for these
+routines are supplied by the library, so if you can live with these defaults
+(which are platform specific), just pass a pointer to <tt/mouse_def_callbacks/.
+<tag/Limits/<itemize>
+<item>The driver is loaded by name, so currently you must know the type of
+mouse that should be supported. There is no autodetect capability.
+<item>Not all drivers are able to detect if the supported hardware is really
+present.
+<item>After installing a driver, the mouse cursor is hidden.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_install" name="mouse_install">,
+<ref id="mouse_uninstall" name="mouse_uninstall">,
+<ref id="mouse_unload" name="mouse_unload">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_move<label id="mouse_move"><p>
+
+<quote>
+<descrip>
+<tag/Function/Move the mouse cursor to a specific position.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/void __fastcall__ mouse_move (int x, int y);/
+<tag/Description/The function updates the mouse position. If the mouse cursor
+is visible, it is shown at the new position.
+<tag/Limits/<itemize>
+<item>The function does not check if the new position is within the bounding
+box specified with <tt/<ref id="mouse_setbox" name="mouse_setbox">/.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_getbox" name="mouse_getbox">,
+<ref id="mouse_setbox" name="mouse_setbox">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_pos<label id="mouse_pos"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return the position of the mouse.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/void __fastcall__ mouse_pos (struct mouse_pos* pos);/
+<tag/Description/The function returns the position of the mouse in the
+<tt/mouse_pos/ structure passed as parameter.
+<tag/Limits/<itemize>
+<item>The <tt/mouse_pos/ struct is a subset of the <tt/mouse_info/ struct,
+so if you do also need the mouse buttons, call <tt/<ref id="mouse_info"
+name="mouse_info">/ instead.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_buttons" name="mouse_buttons">,
+<ref id="mouse_info" name="mouse_info">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_show<label id="mouse_show"><p>
+
+<quote>
+<descrip>
+<tag/Function/Show the mouse pointer.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/void __fastcall__ mouse_show (void);/
+<tag/Description/The function shows the mouse pointer. It manages a counter
+that is shared between <tt/<ref id="mouse_hide" name="mouse_hide">/ and
+<tt/mouse_show/. The mouse cursor is visible if there was one more call to
+<tt/mouse_show/ than to <tt/<ref id="mouse_hide" name="mouse_hide">/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_hide" name="mouse_hide">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_uninstall<label id="mouse_uninstall"><p>
+
+<quote>
+<descrip>
+<tag/Function/Uninstall an already loaded mouse driver.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ mouse_install (void);/
+<tag/Description/The function uninstalls an already loaded mouse driver but
+don't removes it from memory.
+<tag/Limits/<itemize>
+<item>If the driver has been loaded using <tt/<ref id="mouse_load_driver"
+name="mouse_load_driver">/, <tt/<ref id="mouse_unload" name="mouse_unload">/
+should be used instead of <tt/mouse_uninstall/ so the driver is also removed
+from memory.
+<item>The function is only available as fastcall function, so it may only be
+used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_install" name="mouse_install">,
+<ref id="mouse_load_driver" name="mouse_load_driver">,
+<ref id="mouse_unload" name="mouse_unload">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>mouse_unload<label id="mouse_unload"><p>
+
+<quote>
+<descrip>
+<tag/Function/Unload a mouse driver.
+<tag/Header/<tt/<ref id="mouse.h" name="mouse.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ mouse_unload (void);/
+<tag/Description/The function unloads a loaded mouse driver and frees all
+memory allocated for the driver.
+<tag/Limits/<itemize>
+<item>The function does nothing if no driver is loaded.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="mouse_install" name="mouse_install">,
+<ref id="mouse_load_driver" name="mouse_load_driver">,
+<ref id="mouse_uninstall" name="mouse_uninstall">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>offsetof<label id="offsetof"><p>
+
+<quote>
+<descrip>
+<tag/Function/Calculate the offset of a struct or union member.
+<tag/Header/<tt/<ref id="stddef.h" name="stddef.h">/
+<tag/Declaration/<tt/size_t offsetof (type, member);/
+<tag/Description/<tt/offsetof/ calculates the address offset of a <tt/struct/
+or <tt/union/ member.
+<tag/Limits/<itemize>
+<item>The function is actually a macro.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>open<label id="open"><p>
+
+<quote>
+<descrip>
+<tag/Function/Open and possibly create a file.
+<tag/Header/<tt/<ref id="fcntl.h" name="fcntl.h">/
+<tag/Declaration/<tt/int open (const char* name, int flags, ...);/
+<tag/Description/<tt/open/ opens a file and returns the file descriptor
+associated with it. On error, -1 is returned and an error code is stored in
+<tt/errno/. Several flags may be passed to <tt/open/ that change the behaviour.
+<tag/Limits/<itemize>
+<item>POSIX specifies an additional <tt/mode/ argument that may be passed to
+open, which is used as the permission mask when a new file is created. While
+cc65 allows to pass this argument, it is ignored.
+</itemize>
+<tag/Availability/POSIX 1003.1
+<tag/See also/
+<ref id="close" name="close">,
+<ref id="creat" name="creat">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>peekbsys<label id="peekbsys"><p>
+
+<quote>
+<descrip>
+<tag/Function/Read one byte from a location in the system bank.
+<tag/Header/<tt/<ref id="cbm610.h" name="cbm610.h">/,
+<tt/<ref id="cbm510.h" name="cbm510.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ peekbsys (unsigned addr);/
+<tag/Description/<tt/peekbsys/ reads one byte from the given address in the
+system bank (bank 15) of the CBM PET-II machines and returns it.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>This function may be a macro depending on the compiler options. The
+actual function is accessible by #undef'ing the macro.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="PEEK" name="PEEK">,
+<ref id="PEEKW" name="PEEKW">,
+<ref id="peekwsys" name="peekwsys">,
+<ref id="pokebsys" name="pokebsys">,
+<ref id="pokewsys" name="pokewsys">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>peekwsys<label id="peekwsys"><p>
+
+<quote>
+<descrip>
+<tag/Function/Read one word from a location in the system bank.
+<tag/Header/<tt/<ref id="cbm610.h" name="cbm610.h">/,
+<tt/<ref id="cbm510.h" name="cbm510.h">/
+<tag/Declaration/<tt/unsigned __fastcall__ peekwsys (unsigned addr);/
+<tag/Description/<tt/peekwsys/ reads one word from the given address in the
+system bank (bank 15) of the CBM PET-II machines and returns it. Following
+the usual 6502 conventions, the low byte is read from <tt/addr/, and the
+high byte is read from <tt/addr+1/.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The order in which the two bytes are read is undefined.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="PEEK" name="PEEK">,
+<ref id="PEEKW" name="PEEKW">,
+<ref id="peekbsys" name="peekbsys">,
+<ref id="pokebsys" name="pokebsys">,
+<ref id="pokewsys" name="pokewsys">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>perror<label id="perror"><p>
+
+<quote>
+<descrip>
+<tag/Function/Print an error message for the error in <tt/errno/.
+<tag/Header/<tt/<ref id="stdio.h" name="stdio.h">/
+<tag/Declaration/<tt/void __fastcall__ perror (const char* s);/
+<tag/Description/<tt/perror/ prints an error message to <tt/stderr/. If <tt/s/
+is not <tt/NULL/ and not an empty string, it is printed followed by a colon and
+a blank. Then the error message for the current contents of <tt/errno/ is
+printed followed by a newline. The message output is the same as returned by
+<tt/<ref id="strerror" name="strerror">/ with an argument of <tt/errno/.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="_poserror" name="_poserror">,
+<ref id="strerror" name="strerror">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>pokebsys<label id="pokebsys"><p>
+
+<quote>
+<descrip>
+<tag/Function/Write one byte to a location in the system bank.
+<tag/Header/<tt/<ref id="cbm610.h" name="cbm610.h">/,
+<tt/<ref id="cbm510.h" name="cbm510.h">/
+<tag/Declaration/<tt/void __fastcall__ pokebsys (unsigned addr, unsigned char val);/
+<tag/Description/<tt/pokebsys/ writes one byte to the given address in the
+system bank (bank 15) of the CBM PET-II machines.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="POKE" name="POKE">,
+<ref id="POKEW" name="POKEW">,
+<ref id="peekbsys" name="peekbsys">,
+<ref id="peekwsys" name="peekwsys">,
+<ref id="pokewsys" name="pokewsys">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>pokewsys<label id="pokewsys"><p>
+
+<quote>
+<descrip>
+<tag/Function/Write one word to a location in the system bank.
+<tag/Header/<tt/<ref id="cbm610.h" name="cbm610.h">/,
+<tt/<ref id="cbm510.h" name="cbm510.h">/
+<tag/Declaration/<tt/void __fastcall__ pokewsys (unsigned addr, unsigned val);/
+<tag/Description/<tt/pokewsys/ writes one word to the given address in the
+system bank (bank 15) of the CBM PET-II machines. Following the usual 6502
+conventions, the low byte of <tt/val/ is written to <tt/addr/, and the
+high byte is written to <tt/addr+1/.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The order in which the two bytes are written is undefined.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="POKE" name="POKE">,
+<ref id="POKEW" name="POKEW">,
+<ref id="peekbsys" name="peekbsys">,
+<ref id="peekwsys" name="peekwsys">,
+<ref id="pokebsys" name="pokebsys">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>qsort<label id="qsort"><p>
+
+<quote>
+<descrip>
+<tag/Function/Sort an array.
+<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
+<tag/Declaration/<tt/void __fastcall__ qsort (void* base, size_t count,
+size_t size, int (*compare) (const void*, const void*));/
+<tag/Description/<tt/qsort/ sorts an array according to a given compare
+function <tt/compare/. <tt/base/ is the address of the array, <tt/count/
+is the number of elements, <tt/size/ the size of an element and <tt/compare/
+the function used to compare the members.
+<tag/Limits/
+<itemize>
+<item>If there are multiple members with the same key, the order after calling
+the function is undefined.
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="bsearch" name="bsearch">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>raise<label id="raise"><p>
+
+<quote>
+<descrip>
+<tag/Function/Send a signal to the executing program.
+<tag/Header/<tt/<ref id="signal.h" name="signal.h">/
+<tag/Declaration/<tt/int __fastcall__ raise (int sig);/
+<tag/Description/<tt/raise/ sends the given signal to the program. If the
+program has installed a signal handler for the signal, this signal handler
+will be executed. If no handler has been installed, the default action for
+the raised signal will be taken. The function returns zero on success,
+nonzero otherwise.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="abort" name="abort">,
+<ref id="signal" name="signal">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>rand<label id="rand"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return a pseudo random number.
+<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
+<tag/Declaration/<tt/int rand (void);/
+<tag/Description/The function returns a pseudo random number
+between 0 and <tt/RAND_MAX/ (exclusive).
+<tag/Limits/<itemize>
+<item>Without using <tt><ref id="srand" name="srand"></tt>, always the same
+flow of numbers is generated.
+<item>On startup, the function behaves as if <ref id="srand" name="srand">
+had been used with an argument of 1.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="_randomize" name="_randomize">,
+<ref id="srand" name="srand">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>realloc<label id="realloc"><p>
+
+<quote>
+<descrip>
+<tag/Function/Change the size of an allocated memory block.
+<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
+<tag/Declaration/<tt/void* __fastcall__ realloc (void* block, size_t size);/
+<tag/Description/<tt/realloc/ changes the size of the memory block pointed to
+by <tt/block/ to <tt/size/ bytes. If <tt/block/ is <tt/NULL/, <tt/realloc/
+behaves as if <tt/malloc/ had been called. If <tt/size/ is zero, <tt/realloc/
+behaves as if <tt/free/ had been called. On error (not enough memory
+available), <tt/realloc/ returns <tt/NULL/.
+<tag/Limits/
+<itemize>
+<item>The part of the memory block that is returned will have its contents
+unchanged.
+<item>This function is somewhat dangerous to use. Be careful to save the
+pointer you're passing somewhere else, otherwise
+<tscreen><verb>
+ ptr = realloc (ptr, size);
+</verb></tscreen>
+will loose your only copy of <tt/ptr/ if <tt/realloc/ returns <tt/NULL/.
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="_heapadd" name="_heapadd">,
+<ref id="_heapblocksize" name="_heapblocksize">,
+<ref id="_heapmaxavail" name="_heapmaxavail">,
+<ref id="_heapmemavail" name="_heapmemavail">,
+<ref id="calloc" name="calloc">,
+<ref id="free" name="free">,
+<ref id="realloc" name="realloc">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>remove<label id="remove"><p>
+
+<quote>
+<descrip>
+<tag/Function/Delete a file.
+<tag/Header/<tt/<ref id="stdio.h" name="stdio.h">/
+<tag/Declaration/<tt/int __fastcall__ remove (const char* name);/
+<tag/Description/<tt/remove/ deletes the file with the given name. On success,
+zero is returned. On error, -1 is returned and <tt/errno/ is set to an error
+code describing the reason for the failure.
+<tag/Limits/
+<itemize>
+<item>This function is not available on all cc65 targets (depends on the
+availability of file I/O).
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="rename" name="rename">,
+<ref id="unlink" name="unlink">
+<tag/Example/
+<verb>
+#include <stdio.h>
+
+#define FILENAME "helloworld"
+
+if (remove (FILENAME) == 0) {
+ printf ("We deleted %s successfully\n", FILENAME);
+} else {
+ printf ("There was a problem deleting %s\n", FILENAME);
+}
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>rename<label id="rename"><p>
+
+<quote>
+<descrip>
+<tag/Function/Rename a file.
+<tag/Header/<tt/<ref id="stdio.h" name="stdio.h">/
+<tag/Declaration/<tt/int __fastcall__ rename (const char* oldname, const char* newname);/
+<tag/Description/<tt/rename/ renames a file (gives it a new name). On success,
+zero is returned. On error, -1 is returned and <tt/errno/ is set to an error
+code describing the reason for the failure.
+<tag/Limits/
+<itemize>
+<item>This function is not available on all cc65 targets (depends on the
+capabilities of the storage devices).
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="remove" name="remove">
+<tag/Example/
+<verb>
+#include <stdio.h>
+
+#define OLDNAME "textfile.txt"
+#define NEWNAME "textfile.bak"
+
+if (rename (OLDNAME, NEWNAME) == 0) {
+ printf ("Renamed %s to %s\n", OLDNAME, NEWNAME);
+} else {
+ printf ("Error renaming %s to %s\n", OLDNAME, NEWNAME);
+}
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>reset_brk<label id="reset_brk"><p>
+
+<quote>
+<descrip>
+<tag/Function/Resets the break vector to its original value.
+<tag/Header/<tt/<ref id="6502.h" name="6502.h">/
+<tag/Declaration/<tt/void __fastcall__ reset_brk (void);/
+<tag/Description/<tt/reset_brk/ resets the break vector to the value it had
+before a call to <tt/set_brk/.
+<tag/Limits/
+<itemize>
+<item>Since <tt/<ref id="set_brk" name="set_brk">/ installs an exit handler,
+it is not strictly necessary to call this function as part of the cleanup when
+the program ends.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="set_brk" name="set_brk">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>revers<label id="revers"><p>
+
+<quote>
+<descrip>
+<tag/Function/Control revers character display.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/unsigned char __fastcall__ revers (unsigned char onoff);/
+<tag/Description/If the argument is non zero, the function enables reverse
+character display. If the argument is zero, reverse character display is
+switched off. The old value of the setting is returned.
+<tag/Limits/<itemize>
+<item>The function may not be supported by the hardware, in which case
+the call is ignored.
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="textcolor" name="textcolor">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>screensize<label id="screensize"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return the dimensions of the text mode screen.
+<tag/Header/<tt/<ref id="conio.h" name="conio.h">/
+<tag/Declaration/<tt/void __fastcall__ screensize (unsigned char* x, unsigned char* y);/
+<tag/Description/The function returns the dimensions of the text mode screen.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="gotox" name="gotox">,
+<ref id="gotoxy" name="gotoxy">,
+<ref id="gotoy" name="gotoy">,
+<ref id="wherex" name="wherex">,
+<ref id="wherey" name="wherey">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>set_brk<label id="set_brk"><p>
+
+<quote>
+<descrip>
+<tag/Function/Set the break vector to a user function.
+<tag/Header/<tt/<ref id="6502.h" name="6502.h">/
+<tag/Declaration/<tt/void __fastcall__ set_brk (brk_handler func);/
+<tag/Description/<tt/set_brk/ allows a user program to handle breaks within the
+program code by letting the vector point to a user written C function. The
+runtime library installs a small stub that saves the registers into global
+variables that may be accessed (and changed) by the break handler.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The stub saves the zero page registers used by the C runtime and switches
+to a small break handler stack. This means that it is safe to execute C code,
+even if C code was interrupted. Be careful however not to use too many local
+variables, and do not enable stack checks for the handler function or any other
+function called from it.
+<item>The <tt/brk_pc/ variable points to the <tt/BRK/ instruction. If you want
+the continue with the interrupted code, you have to adjust <tt/brk_pc/,
+otherwise the <tt/BRK/ instruction will get executed over and over again.
+<item>Since <tt/set_brk/ installs an exit handler, it is not strictly necessary
+to call <tt/<ref id="reset_brk" name="reset_brk">/ as part of the cleanup when
+the program terminates.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="reset_brk" name="reset_brk">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>setjmp<label id="setjmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Save the context for use with <tt/longjmp/.
+<tag/Header/<tt/<ref id="setjmp.h" name="setjmp.h">/
+<tag/Declaration/<tt/int __fastcall__ setjmp (jmp_buf buf);/
+<tag/Description/The <tt/setjmp/ function saves the current context in <tt/buf/
+for subsequent use by the <tt/<ref id="longjmp" name="longjmp">/ function and
+returns zero.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item><tt/setjmp/ is actually a macro as required by the ISO standard.
+<item><tt/setjmp/ will not save the signal context.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="longjmp" name="longjmp">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>setlocale<label id="setlocale"><p>
+
+<quote>
+<descrip>
+<tag/Function/Selects a locale.
+<tag/Header/<tt/<ref id="locale.h" name="locale.h">/
+<tag/Declaration/<tt/char* __fastcall__ setlocale (int category, const char* locale);/
+<tag/Description/<tt/setlocale/ sets or queries the program's locale.
+<tag/Limits/
+<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>cc65 supports only the "C" locale, so calling this function to set a
+different locale has no effect.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="localeconv" name="localeconv">,
+<ref id="strcoll" name="strcoll">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>signal<label id="signal"><p>
+
+<quote>
+<descrip>
+<tag/Function/Install a signal handler.
+<tag/Header/<tt/<ref id="signal.h" name="signal.h">/
+<tag/Declaration/<tt/__sigfunc __fastcall__ signal (int sig, __sigfunc func);/
+<tag/Description/<tt/signal/ installs a handler for the given signal. The
+handler may either be a user supplied function, or one of the predefined
+signal handlers <tt/SIG_IGN/ or <tt/SIG_DFL/. The function returns the
+previous value if the signal , or the special function vector SIG_ERR in
+case of an error.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="abort" name="abort">,
+<ref id="raise" name="raise">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>sleep<label id="sleep"><p>
+
+<quote>
+<descrip>
+<tag/Function/Sleep for a specified amount of time.
+<tag/Header/<tt/<ref id="unistd.h" name="unistd.h">/
+<tag/Declaration/<tt/void __fastcall__ sleep (unsigned seconds);/
+<tag/Description/The function will return after the specified number of
+seconds have elapsed.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/POSIX 1003.1
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>slow<label id="slow"><p>
+
+<quote>
+<descrip>
+<tag/Function/Switch the C128 into 1MHz mode.
+<tag/Header/<tt/<ref id="c128.h" name="c128.h">/
+<tag/Declaration/<tt/void slow (void);/
+<tag/Description/The function will switch the clock of the C128 to 1MHz. This
+will halve the speed compared to fast mode.
+<tag/Limits/<itemize>
+<item>The function is specific to the C128.
+</itemize>
+<tag/Availability/C128
+<tag/See also/
+<ref id="fast" name="fast">,
+<ref id="toggle_videomode" name="toggle_videomode">,
+<ref id="videomode" name="videomode">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>srand<label id="srand"><p>
+
+<quote>
+<descrip>
+<tag/Function/Initialize the pseudo random number generator.
+<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
+<tag/Declaration/<tt/void __fastcall__ srand (unsigned seed);/
+<tag/Description/The function initializes the random number generator using
+the given seed. On program startup, the generator behaves as if <tt/srand/ has
+been called with an argument of 1.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="_randomize" name="_randomize">,
+<ref id="rand" name="rand">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strcasecmp<label id="strcasecmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings case insensitive.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strcasecmp (const char* s1, const char* s2);/
+<tag/Description/The <tt/strcasecmp/ function compares the two strings passed
+as parameters without case sensitivity. It returns a value that is less than
+zero if <tt/s1/ is less than <tt/s2/, zero if <tt/s1/ is the same as <tt/s2/,
+and a value greater than zero if <tt/s1/ is greater than <tt/s2/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The function is not available in strict ANSI mode.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="strcmp" name="strcmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="stricmp" name="stricmp">,
+<ref id="strncmp" name="strncmp">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strcat<label id="strcat"><p>
+
+<quote>
+<descrip>
+<tag/Function/Concatentate two strings.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strcat (char* s1, const char* s2);/
+<tag/Description/The <tt/strcat/ function appends a copy of the string
+pointed to by s2 (including the terminating null byte) to the end of the
+string pointed to by s1. The initial byte of s2 overwrites the null byte at
+the end of s1.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>If copying takes place between objects that overlap, the behaviour
+is undefined.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcpy" name="strcpy">,
+<ref id="strncat" name="strncat">,
+<ref id="strncpy" name="strncpy">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strchr<label id="strchr"><p>
+
+<quote>
+<descrip>
+<tag/Function/Search for a character in a string.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strchr (const char* s, int c);/
+<tag/Description/The <tt/strchr/ function locates the first occurrence of <tt/c/
+(converted to a char) in the string pointed to by <tt/s/. The terminating null
+byte is considered to be part of the string. Upon completion, the function
+returns a pointer to the byte, or a null pointer if the byte was not found.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="memchr" name="memchr">,
+<ref id="strrchr" name="strrchr">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strcmp<label id="strcmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strcmp (const char* s1, const char* s2);/
+<tag/Description/The <tt/strcmp/ function compares the two strings passed as
+parameters. It returns a value that is less than zero if <tt/s1/ is less than
+<tt/s2/, zero if <tt/s1/ is the same as <tt/s2/, and a value greater than zero
+if <tt/s1/ is greater than <tt/s2/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcasecmp" name="strcasecmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="stricmp" name="stricmp">,
+<ref id="strncmp" name="strncmp">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strcoll<label id="strcoll"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strcoll (const char* s1, const char* s2);/
+<tag/Description/The <tt/strcoll/ function compares the two strings passed as
+parameters, according to the collating sequence set by <tt/<ref id="setlocale"
+name="setlocale">/. It returns a value that is less than zero if <tt/s1/ is
+less than <tt/s2/, zero if <tt/s1/ is the same as <tt/s2/, and a value greater
+than zero if <tt/s1/ is greater than <tt/s2/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="setlocale" name="setlocale">,
+<ref id="strcasecmp" name="strcasecmp">,
+<ref id="strcmp" name="strcmp">,
+<ref id="stricmp" name="stricmp">,
+<ref id="strncmp" name="strncmp">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strcpy<label id="strcpy"><p>
+
+<quote>
+<descrip>
+<tag/Function/Copy a string.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strcpy (char* s1, const char* s2);/
+<tag/Description/The <tt/strcpy/ function copies the string pointed to by
+<tt/s2/ (including the terminating null byte) into the array pointed to by
+<tt/s1/. The function will always return <tt/s1/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>If copying takes place between objects that overlap, the behaviour
+is undefined.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcat" name="strcat">,
+<ref id="strncat" name="strncat">,
+<ref id="strncpy" name="strncpy">
+<tag/Example/
+<verb>
+#include <string.h>
+
+static char hello[14];
+
+strcpy (hello, "Hello world!\n");
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>strcspn<label id="strcspn"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compute the length of a substring.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/size_t __fastcall__ strcspn (const char* s, const char* set);/
+<tag/Description/The <tt/strcspn/ function computes and returns the length of
+the substring pointed to by <tt/s/ which does <em>not</em> consist of
+characters contained in the string <tt/set/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strspn" name="strspn">,
+<ref id="strstr" name="strstr">,
+<ref id="strtok" name="strtok">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strdup<label id="strdup"><p>
+
+<quote>
+<descrip>
+<tag/Function/Allocate a copy of a string on the heap.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strdup (const char* s);/
+<tag/Description/<tt/strdup/ allocates a memory block on the heap, big enough
+to hold a copy of <tt/s/ including the terminating zero. If the allocation
+fails, <tt/NULL/ is returned, otherwise <tt/s/ is copied into the allocated
+memory block, and a pointer to the block is returned.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>It is up to the caller to free the allocated memory block.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="free" name="free">,
+<ref id="malloc" name="malloc">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strerror<label id="strerror"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return a string describing an error code.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strerror (int errcode);/
+<tag/Description/The <tt/strerror/ function returns a string describing the
+given error code. If an invalid error code is passed, the string "Unknown
+error" is returned, and <tt/errno/ is set to <tt/EINVAL/. In all other cases,
+<tt/errno/ is left untouched.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>While the return type of the function is a <tt/char*/, the returned
+string must not be modified by the caller!
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="_stroserror" name="_stroserror">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>stricmp<label id="stricmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings case insensitive.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ stricmp (const char* s1, const char* s2);/
+<tag/Description/The <tt/stricmp/ function compares the two strings passed as
+parameters without case sensitivity. It returns a value that is less than zero
+if <tt/s1/ is less than <tt/s2/, zero if <tt/s1/ is the same as <tt/s2/, and a
+value greater than zero if <tt/s1/ is greater than <tt/s2/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The function is not available in strict ANSI mode.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="strcasecmp" name="strcasecmp">,
+<ref id="strcmp" name="strcmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="strncmp" name="strncmp">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strlen<label id="strlen"><p>
+
+<quote>
+<descrip>
+<tag/Function/Return the length of a string.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/size_t __fastcall__ strlen (const char* s);/
+<tag/Description/The <tt/strlen/ function computes the number of bytes in the
+string to which s points, not including the terminating null byte.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>When compiling with <tt/-Os/ (inline known standard functions), the
+function does not work correctly for strings with more than 255 characters.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcpy" name="strcpy">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strlower<label id="strlower"><p>
+
+<quote>
+<descrip>
+<tag/Function/Make a string lower case.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strlower (char* s);/
+<tag/Description/The <tt/strlower/ function will apply the <tt/tolower/
+function to each character of a string. The function will always return <tt/s/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>The function prototype is unavailable when compiling in strict ANSI mode.
+<item>An alias name for this function is <tt/strlwr/.
+</itemize>
+<tag/Availability/cc65
+<tag/See also/
+<ref id="strupper" name="strupper">,
+<ref id="tolower" name="tolower">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strlwr<label id="strlwr"><p>
+
+<quote>
+See <tt/strlower/.
+</quote>
+
+
+<sect1>strncat<label id="strncat"><p>
+
+<quote>
+<descrip>
+<tag/Function/Concatentate two strings.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strncat (char* s1, const char* s2, size_t n);/
+<tag/Description/The <tt/strncat/ function appends not more than n characters
+of the string pointed to by s2 to the end of the string pointed to by s1. The
+terminating null character at the end of s1 is overwritten. A terminating null
+character is appended to the result, even if not all of s2 is appended to s1.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+<item>If copying takes place between objects that overlap, the behaviour
+is undefined.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcpy" name="strcpy">,
+<ref id="strncat" name="strncat">,
+<ref id="strncpy" name="strncpy">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strncmp<label id="strncmp"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compare two strings.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/int __fastcall__ strncmp (const char* s1, const char* s2, size_t count);/
+<tag/Description/The <tt/strncmp/ function compares not more than <tt/count/
+characters of the two strings passed as parameters. It returns a value that is
+less than zero if the first <tt/count/ characters of <tt/s1/ are less than
+<tt/s2/, zero if they are identical, and a value greater than zero they are
+greater.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcasecmp" name="strcasecmp">,
+<ref id="strcmp" name="strcmp">,
+<ref id="strcoll" name="strcoll">,
+<ref id="stricmp" name="stricmp">
+<ref id="strxfrm" name="strxfrm">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strncpy<label id="strncpy"><p>
+
+<quote>
+<descrip>
+<tag/Function/Copy part of a string.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strcpy (char* s1, const char* s2, size_t n);/
+<tag/Description/The <tt/strncpy/ function copies not more than n bytes from
+the array pointed to by <tt/s2/ to the array pointed to by <tt/s1/. If the array
+pointed to by <tt/s2/ is a string that is shorter than n bytes, null bytes are
+appended to the copy in the array pointed to by <tt/s1/, until <tt/n/ bytes are
+written. The function will always return <tt/s1/.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype. If there is no null byte in the first <tt/n/
+bytes of the array pointed to by <tt/s2/, the result is not null-terminated.
+<item>If copying takes place between objects that overlap, the behaviour is
+undefined.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strcat" name="strcat">,
+<ref id="strcpy" name="strcpy">,
+<ref id="strncat" name="strncat">
+<tag/Example/
+<verb>
+#include <string.h>
+
+static char hello[6];
+
+strcpy (hello, "Hello world!\n", sizeof (hello) - 1);
+hello[5] = '\0';
+</verb>
+</descrip>
+</quote>
+
+
+<sect1>strrchr<label id="strrchr"><p>
+
+<quote>
+<descrip>
+<tag/Function/Search for a character in a string.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/char* __fastcall__ strrchr (const char* s, int c);/
+<tag/Description/The <tt/strrchr/ function locates the last occurrence of <tt/c/
+(converted to a char) in the string pointed to by <tt/s/. The terminating null
+byte is considered to be part of the string. Upon completion, the function
+returns a pointer to the byte, or a null pointer if the byte was not found.
+<tag/Limits/<itemize>
+<item>The function is only available as fastcall function, so it may only
+be used in presence of a prototype.
+</itemize>
+<tag/Availability/ISO 9899
+<tag/See also/
+<ref id="strchr" name="strchr">
+<tag/Example/None.
+</descrip>
+</quote>
+
+
+<sect1>strspn<label id="strspn"><p>
+
+<quote>
+<descrip>
+<tag/Function/Compute the length of a substring.
+<tag/Header/<tt/<ref id="string.h" name="string.h">/
+<tag/Declaration/<tt/size_t __fastcall__ strspn (const char* s, const char* set);/
+<tag/Description/The <tt/strspn/ function computes and returns the length of
+the substring pointed to by <tt/s/ which does consist only of characters
+contained in the string <tt/set/.