67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
|
/************************************************************
|
||
|
|
yycpcrea.cpp
|
||
|
|
This file can be freely modified for the generation of
|
||
|
|
custom code.
|
||
|
|
|
||
|
|
Copyright (c) 1999 Bumble-Bee Software Ltd.
|
||
|
|
************************************************************/
|
||
|
|
|
||
|
|
#include "cyacc.h"
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
int yyparser::yycreate(yylexer YYFAR* lexerptr)
|
||
|
|
{
|
||
|
|
yylexerptr = lexerptr;
|
||
|
|
|
||
|
|
// stack
|
||
|
|
if (yysstack_size != 0) {
|
||
|
|
size_t stackcharsize;
|
||
|
|
size_t attributestackcharsize;
|
||
|
|
|
||
|
|
stackcharsize = yysstack_size * sizeof(yystack_t);
|
||
|
|
if ((int)(stackcharsize / sizeof(yystack_t)) != yysstack_size) {
|
||
|
|
return 0; // integer overflow
|
||
|
|
}
|
||
|
|
attributestackcharsize = yysstack_size * yyattribute_size;
|
||
|
|
if ((int)(attributestackcharsize / yyattribute_size) != yysstack_size) {
|
||
|
|
return 0; // integer overflow
|
||
|
|
}
|
||
|
|
|
||
|
|
yysstackptr = (yystack_t YYFAR*)malloc(stackcharsize);
|
||
|
|
if (yysstackptr == NULL) {
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
yysattributestackptr = malloc(attributestackcharsize);
|
||
|
|
if (yysattributestackptr == NULL) {
|
||
|
|
free(yysstackptr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
yysstackptr = NULL;
|
||
|
|
yysattributestackptr = NULL;
|
||
|
|
}
|
||
|
|
yystack_size = yysstack_size;
|
||
|
|
yystackptr = yysstackptr;
|
||
|
|
yyattributestackptr = yysattributestackptr;
|
||
|
|
|
||
|
|
// yylval
|
||
|
|
yylvalptr = malloc(yyattribute_size);
|
||
|
|
if (yylvalptr == NULL) {
|
||
|
|
free(yysstackptr);
|
||
|
|
free(yysattributestackptr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// yyval ($$)
|
||
|
|
yyvalptr = malloc(yyattribute_size);
|
||
|
|
if (yyvalptr == NULL) {
|
||
|
|
free(yysstackptr);
|
||
|
|
free(yysattributestackptr);
|
||
|
|
free(yylvalptr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|