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75
Utils/Parser Generator/SOURCE/yympcrea.c
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Utils/Parser Generator/SOURCE/yympcrea.c
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/************************************************************
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yympcrea.c
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This file can be freely modified for the generation of
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custom code.
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Copyright (c) 1999 Bumble-Bee Software Ltd.
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************************************************************/
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#include "myacc.h"
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#include <stdlib.h>
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#ifdef YYPROTOTYPE
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int YYCDECL yymcreateparse(yymparse_t YYFAR *yy, YYCONST yymparse_t YYFAR *src)
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#else
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int YYCDECL yymcreateparse(yy, src)
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yymparse_t YYFAR *yy;
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YYCONST yymparse_t YYFAR *src;
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#endif
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{
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yyassert(yy != NULL);
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yyassert(src != NULL);
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*yy = *src;
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/* stack */
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if (yy->yymsstack_size != 0) {
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size_t stackcharsize;
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size_t attributestackcharsize;
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stackcharsize = yy->yymsstack_size * sizeof(yystack_t);
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if ((int) (stackcharsize / sizeof(yystack_t)) != yy->yymsstack_size) {
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return 0; /* integer overflow */
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}
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attributestackcharsize = yy->yymsstack_size * yy->yymattribute_size;
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if ((int) (attributestackcharsize / yy->yymattribute_size) != yy->yymsstack_size) {
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return 0; /* integer overflow */
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}
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yy->yymsstackptr = (yystack_t YYFAR *) malloc(stackcharsize);
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if (yy->yymsstackptr == NULL) {
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return 0;
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}
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yy->yymsattributestackptr = malloc(attributestackcharsize);
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if (yy->yymsattributestackptr == NULL) {
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free(yy->yymsstackptr);
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return 0;
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}
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}
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else {
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yy->yymsstackptr = NULL;
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yy->yymsattributestackptr = NULL;
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}
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yy->yymstack_size = yy->yymsstack_size;
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yy->yymstackptr = yy->yymsstackptr;
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yy->yymattributestackptr = yy->yymsattributestackptr;
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/* yylval */
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yy->yymlvalptr = malloc(yy->yymattribute_size);
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if (yy->yymlvalptr == NULL) {
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free(yy->yymsstackptr);
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free(yy->yymsattributestackptr);
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return 0;
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}
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/* yyval ($$) */
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yy->yymvalptr = malloc(yy->yymattribute_size);
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if (yy->yymvalptr == NULL) {
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free(yy->yymsstackptr);
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free(yy->yymsattributestackptr);
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free(yy->yymlvalptr);
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return 0;
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}
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return 1;
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}
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