89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
|
/************************************************************
|
||
|
|
yymsssiz.c
|
||
|
|
This file can be freely modified for the generation of
|
||
|
|
custom code.
|
||
|
|
|
||
|
|
Copyright (c) 1999 Bumble-Bee Software Ltd.
|
||
|
|
************************************************************/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include "myacc.h"
|
||
|
|
|
||
|
|
#ifdef YYPROTOTYPE
|
||
|
|
int YYCDECL yymsetstacksize(yymparse_t YYFAR *yy, int size)
|
||
|
|
#else
|
||
|
|
int YYCDECL yymsetstacksize(yy, size)
|
||
|
|
yymparse_t YYFAR *yy;
|
||
|
|
int size;
|
||
|
|
#endif
|
||
|
|
{
|
||
|
|
yyassert(yy != NULL);
|
||
|
|
yyassert(size >= 0);
|
||
|
|
if (yy->yymstack_size != size) {
|
||
|
|
yystack_t YYFAR *stackptr;
|
||
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
||
|
|
void YYFAR *attributestackptr;
|
||
|
|
#else
|
||
|
|
char YYFAR *attributestackptr;
|
||
|
|
#endif
|
||
|
|
size_t stackcharsize;
|
||
|
|
size_t attributestackcharsize;
|
||
|
|
|
||
|
|
if (size <= yy->yymtop) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
stackcharsize = size * sizeof(yystack_t);
|
||
|
|
if ((int) (stackcharsize / sizeof(yystack_t)) != size) {
|
||
|
|
return 0; /* integer overflow */
|
||
|
|
}
|
||
|
|
attributestackcharsize = size * yy->yymattribute_size;
|
||
|
|
if ((int) (attributestackcharsize / yy->yymattribute_size) != size) {
|
||
|
|
return 0; /* integer overflow */
|
||
|
|
}
|
||
|
|
|
||
|
|
/* allocate */
|
||
|
|
if (size <= yy->yymsstack_size) {
|
||
|
|
stackptr = yy->yymsstackptr;
|
||
|
|
attributestackptr = yy->yymsattributestackptr;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
stackptr = (yystack_t YYFAR *) malloc(stackcharsize);
|
||
|
|
if (stackptr == NULL) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
attributestackptr = malloc(attributestackcharsize);
|
||
|
|
if (attributestackptr == NULL) {
|
||
|
|
free(stackptr); /* clean up */
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* copy */
|
||
|
|
if (stackptr != yy->yymstackptr) {
|
||
|
|
size_t charsize = yy->yymstack_size * sizeof(yystack_t);
|
||
|
|
memcpy(stackptr, yy->yymstackptr, min(stackcharsize, charsize));
|
||
|
|
}
|
||
|
|
if (attributestackptr != yy->yymattributestackptr) {
|
||
|
|
size_t charsize = yy->yymstack_size * yy->yymattribute_size;
|
||
|
|
memcpy(attributestackptr, yy->yymattributestackptr, min(attributestackcharsize,
|
||
|
|
charsize));
|
||
|
|
}
|
||
|
|
|
||
|
|
/* free */
|
||
|
|
if (yy->yymstackptr != yy->yymsstackptr) {
|
||
|
|
free(yy->yymstackptr);
|
||
|
|
}
|
||
|
|
if (yy->yymattributestackptr != yy->yymsattributestackptr) {
|
||
|
|
free(yy->yymattributestackptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* assign */
|
||
|
|
yy->yymstackptr = stackptr;
|
||
|
|
yy->yymattributestackptr = attributestackptr;
|
||
|
|
yy->yymstack_size = size;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
}
|