+++ /dev/null
-/*\r
- Copyright 2001, 2002 Georges Menie (www.menie.org)\r
- stdarg version contributed by Christian Ettinger\r
-\r
- This program is free software; you can redistribute it and/or modify\r
- it under the terms of the GNU Lesser General Public License as published by\r
- the Free Software Foundation; either version 2 of the License, or\r
- (at your option) any later version.\r
-\r
- This program is distributed in the hope that it will be useful,\r
- but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- GNU Lesser General Public License for more details.\r
-\r
- You should have received a copy of the GNU Lesser General Public License\r
- along with this program; if not, write to the Free Software\r
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
-*/\r
-\r
-/*\r
- putchar is the only external dependency for this file,\r
- if you have a working putchar, leave it commented out.\r
- If not, uncomment the define below and\r
- replace outbyte(c) by your own function call.\r
-\r
-*/\r
-\r
-#define putchar(c) c\r
-\r
-#include <stdarg.h>\r
-\r
-static void printchar(char **str, int c)\r
-{\r
- //extern int putchar(int c);\r
- \r
- if (str) {\r
- **str = (char)c;\r
- ++(*str);\r
- }\r
- else\r
- { \r
- (void)putchar(c);\r
- }\r
-}\r
-\r
-#define PAD_RIGHT 1\r
-#define PAD_ZERO 2\r
-\r
-static int prints(char **out, const char *string, int width, int pad)\r
-{\r
- register int pc = 0, padchar = ' ';\r
-\r
- if (width > 0) {\r
- register int len = 0;\r
- register const char *ptr;\r
- for (ptr = string; *ptr; ++ptr) ++len;\r
- if (len >= width) width = 0;\r
- else width -= len;\r
- if (pad & PAD_ZERO) padchar = '0';\r
- }\r
- if (!(pad & PAD_RIGHT)) {\r
- for ( ; width > 0; --width) {\r
- printchar (out, padchar);\r
- ++pc;\r
- }\r
- }\r
- for ( ; *string ; ++string) {\r
- printchar (out, *string);\r
- ++pc;\r
- }\r
- for ( ; width > 0; --width) {\r
- printchar (out, padchar);\r
- ++pc;\r
- }\r
-\r
- return pc;\r
-}\r
-\r
-/* the following should be enough for 32 bit int */\r
-#define PRINT_BUF_LEN 12\r
-\r
-static int printi(char **out, int i, int b, int sg, int width, int pad, int letbase)\r
-{\r
- char print_buf[PRINT_BUF_LEN];\r
- register char *s;\r
- register int t, neg = 0, pc = 0;\r
- register unsigned int u = (unsigned int)i;\r
-\r
- if (i == 0) {\r
- print_buf[0] = '0';\r
- print_buf[1] = '\0';\r
- return prints (out, print_buf, width, pad);\r
- }\r
-\r
- if (sg && b == 10 && i < 0) {\r
- neg = 1;\r
- u = (unsigned int)-i;\r
- }\r
-\r
- s = print_buf + PRINT_BUF_LEN-1;\r
- *s = '\0';\r
-\r
- while (u) {\r
- t = (unsigned int)u % b;\r
- if( t >= 10 )\r
- t += letbase - '0' - 10;\r
- *--s = (char)(t + '0');\r
- u /= b;\r
- }\r
-\r
- if (neg) {\r
- if( width && (pad & PAD_ZERO) ) {\r
- printchar (out, '-');\r
- ++pc;\r
- --width;\r
- }\r
- else {\r
- *--s = '-';\r
- }\r
- }\r
-\r
- return pc + prints (out, s, width, pad);\r
-}\r
-\r
-static int print( char **out, const char *format, va_list args )\r
-{\r
- register int width, pad;\r
- register int pc = 0;\r
- char scr[2];\r
-\r
- for (; *format != 0; ++format) {\r
- if (*format == '%') {\r
- ++format;\r
- width = pad = 0;\r
- if (*format == '\0') break;\r
- if (*format == '%') goto out;\r
- if (*format == '-') {\r
- ++format;\r
- pad = PAD_RIGHT;\r
- }\r
- while (*format == '0') {\r
- ++format;\r
- pad |= PAD_ZERO;\r
- }\r
- for ( ; *format >= '0' && *format <= '9'; ++format) {\r
- width *= 10;\r
- width += *format - '0';\r
- }\r
- if( *format == 's' ) {\r
- register char *s = (char *)va_arg( args, int );\r
- pc += prints (out, s?s:"(null)", width, pad);\r
- continue;\r
- }\r
- if( *format == 'd' ) {\r
- pc += printi (out, va_arg( args, int ), 10, 1, width, pad, 'a');\r
- continue;\r
- }\r
- if( *format == 'x' ) {\r
- pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'a');\r
- continue;\r
- }\r
- if( *format == 'X' ) {\r
- pc += printi (out, va_arg( args, int ), 16, 0, width, pad, 'A');\r
- continue;\r
- }\r
- if( *format == 'u' ) {\r
- pc += printi (out, va_arg( args, int ), 10, 0, width, pad, 'a');\r
- continue;\r
- }\r
- if( *format == 'c' ) {\r
- /* char are converted to int then pushed on the stack */\r
- scr[0] = (char)va_arg( args, int );\r
- scr[1] = '\0';\r
- pc += prints (out, scr, width, pad);\r
- continue;\r
- }\r
- }\r
- else {\r
- out:\r
- printchar (out, *format);\r
- ++pc;\r
- }\r
- }\r
- if (out) **out = '\0';\r
- va_end( args );\r
- return pc;\r
-}\r
-\r
-int printf(const char *format, ...)\r
-{\r
- va_list args;\r
- \r
- va_start( args, format );\r
- return print( 0, format, args );\r
-}\r
-\r
-int sprintf(char *out, const char *format, ...)\r
-{\r
- va_list args;\r
- \r
- va_start( args, format );\r
- return print( &out, format, args );\r
-}\r
-\r
-\r
-int snprintf( char *buf, unsigned int count, const char *format, ... )\r
-{\r
- va_list args;\r
- \r
- ( void ) count;\r
- \r
- va_start( args, format );\r
- return print( &buf, format, args );\r
-}\r
-\r
-\r
-#ifdef TEST_PRINTF\r
-int main(void)\r
-{\r
- char *ptr = "Hello world!";\r
- char *np = 0;\r
- int i = 5;\r
- unsigned int bs = sizeof(int)*8;\r
- int mi;\r
- char buf[80];\r
-\r
- mi = (1 << (bs-1)) + 1;\r
- printf("%s\n", ptr);\r
- printf("printf test\n");\r
- printf("%s is null pointer\n", np);\r
- printf("%d = 5\n", i);\r
- printf("%d = - max int\n", mi);\r
- printf("char %c = 'a'\n", 'a');\r
- printf("hex %x = ff\n", 0xff);\r
- printf("hex %02x = 00\n", 0);\r
- printf("signed %d = unsigned %u = hex %x\n", -3, -3, -3);\r
- printf("%d %s(s)%", 0, "message");\r
- printf("\n");\r
- printf("%d %s(s) with %%\n", 0, "message");\r
- sprintf(buf, "justif: \"%-10s\"\n", "left"); printf("%s", buf);\r
- sprintf(buf, "justif: \"%10s\"\n", "right"); printf("%s", buf);\r
- sprintf(buf, " 3: %04d zero padded\n", 3); printf("%s", buf);\r
- sprintf(buf, " 3: %-4d left justif.\n", 3); printf("%s", buf);\r
- sprintf(buf, " 3: %4d right justif.\n", 3); printf("%s", buf);\r
- sprintf(buf, "-3: %04d zero padded\n", -3); printf("%s", buf);\r
- sprintf(buf, "-3: %-4d left justif.\n", -3); printf("%s", buf);\r
- sprintf(buf, "-3: %4d right justif.\n", -3); printf("%s", buf);\r
-\r
- return 0;\r
-}\r
-\r
-/*\r
- * if you compile this file with\r
- * gcc -Wall $(YOUR_C_OPTIONS) -DTEST_PRINTF -c printf.c\r
- * you will get a normal warning:\r
- * printf.c:214: warning: spurious trailing `%' in format\r
- * this line is testing an invalid % at the end of the format string.\r
- *\r
- * this should display (on 32bit int machine) :\r
- *\r
- * Hello world!\r
- * printf test\r
- * (null) is null pointer\r
- * 5 = 5\r
- * -2147483647 = - max int\r
- * char a = 'a'\r
- * hex ff = ff\r
- * hex 00 = 00\r
- * signed -3 = unsigned 4294967293 = hex fffffffd\r
- * 0 message(s)\r
- * 0 message(s) with %\r
- * justif: "left "\r
- * justif: " right"\r
- * 3: 0003 zero padded\r
- * 3: 3 left justif.\r
- * 3: 3 right justif.\r
- * -3: -003 zero padded\r
- * -3: -3 left justif.\r
- * -3: -3 right justif.\r
- */\r
-\r
-#endif\r
-\r
-\r
-\r
projects / freertos / commitdiff