mirror of https://github.com/cc65/cc65.git
83 lines
3.5 KiB
C
83 lines
3.5 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* strstack.c */
|
|
/* */
|
|
/* String stack used for program settings */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 2004 Ullrich von Bassewitz */
|
|
/* Roemerstrasse 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);
|
|
}
|