-long IS_Pop (IntStack* S)
-/* Pop a value from an int stack */
+void IS_Drop (IntStack* S)
+/* Drop a value from an int stack */
{
CHECK (S->Count > 1);
- return S->Stack[--S->Count];
+ --S->Count;
}
void IS_Set (IntStack* S, long Val);
/* Set the value on top of an int stack */
-long IS_Pop (IntStack* S);
-/* Pop a value from an int stack */
+void IS_Drop (IntStack* S);
+/* Drop a value from an int stack */
void IS_Push (IntStack* S, long Val);
/* Push a value onto an int stack */
shift.o \
strbuf.o \
strpool.o \
+ strstack.o \
strutil.o \
target.o \
tgttrans.o \
shift.obj \
strbuf.obj \
strpool.obj \
+ strstack.obj \
strutil.obj \
target.obj \
tgttrans.obj \
--- /dev/null
+/*****************************************************************************/
+/* */
+/* strstack.c */
+/* */
+/* String stack used for program settings */
+/* */
+/* */
+/* */
+/* (C) 2004 Ullrich von Bassewitz */
+/* Römerstraße 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
+
+
+
+/* common */
+#include "check.h"
+#include "strstack.h"
+#include "xmalloc.h"
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+const char* SS_Get (const StrStack* S)
+/* Get the value on top of a string stack */
+{
+ CHECK (S->Count > 0);
+ return S->Stack[S->Count-1];
+}
+
+
+
+void SS_Set (StrStack* S, const char* Val)
+/* Set the value on top of a string stack */
+{
+ CHECK (S->Count > 0);
+ xfree (S->Stack[S->Count-1]);
+ S->Stack[S->Count-1] = xstrdup (Val);
+}
+
+
+
+void SS_Drop (StrStack* S)
+/* Drop a value from a string stack */
+{
+ CHECK (S->Count > 1);
+ xfree (S->Stack[--S->Count]);
+}
+
+
+
+void SS_Push (StrStack* S, const char* Val)
+/* Push a value onto a string stack */
+{
+ CHECK (S->Count < sizeof (S->Stack) / sizeof (S->Stack[0]));
+ S->Stack[S->Count++] = xstrdup (Val);
+}
+
+
+
--- /dev/null
+/*****************************************************************************/
+/* */
+/* strstack.h */
+/* */
+/* String stack used for program settings */
+/* */
+/* */
+/* */
+/* (C) 2004 Ullrich von Bassewitz */
+/* Römerstraße 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
+
+
+
+#ifndef STRSTACK_H
+#define STRSTACK_H
+
+
+
+#include "inline.h"
+
+
+
+/*****************************************************************************/
+/* Data */
+/*****************************************************************************/
+
+
+
+typedef struct StrStack StrStack;
+struct StrStack {
+ unsigned Count;
+ char* Stack[8];
+};
+
+/* Declare an empty string stack */
+#define STRSTACK() { 0 };
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+#if defined(HAVE_INLINE)
+INLINE int SS_IsFull (const StrStack* S)
+/* Return true if there is no space left on the given string stack */
+{
+ return (S->Count >= sizeof (S->Stack) / sizeof (S->Stack[0]));
+}
+#else
+# define SS_IsFull(S) ((S)->Count >= sizeof ((S)->Stack) / sizeof ((S)->Stack[0]))
+#endif
+
+#if defined(HAVE_INLINE)
+INLINE unsigned SS_GetCount (const StrStack* S)
+/* Return the number of elements on the given string stack */
+{
+ return S->Count;
+}
+#else
+# define SS_GetCount(S) (S)->Count
+#endif
+
+const char* SS_Get (const StrStack* S);
+/* Get the value on top of a string stack */
+
+void SS_Set (StrStack* S, const char* Val);
+/* Set the value on top of a string stack */
+
+void SS_Drop (StrStack* S);
+/* Drop a value from a string stack */
+
+void SS_Push (StrStack* S, const char* Val);
+/* Push a value onto a string stack */
+
+
+
+/* End of strstack.h */
+#endif
+
+
+
projects / cc65 / commitdiff