99 lines
2.0 KiB
C++
99 lines
2.0 KiB
C++
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/************************************************************
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yycpush.cpp
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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 <stdlib.h>
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#include <string.h>
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#include "cyacc.h"
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int yyparser::yypush(yystack_t state)
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{
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yytop++; // increment first
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if (yytop == yystack_size) {
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do {
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if (yystackgrow) {
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if (yystack_size != 0) {
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int size = yystack_size * 2;
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if (size / 2 == yystack_size) { // overflow check
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if (yysetstacksize(size)) {
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break;
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}
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}
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}
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else {
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if (yysetstacksize(100)) {
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break;
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}
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}
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}
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yytop--;
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// debugging
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#ifdef YYDEBUG
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if (::yydebug || yydebug) {
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char string[128];
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sprintf(string, "%p: stack overflow\n", (void*)this);
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yydebugoutput(string);
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}
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#endif
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yystackoverflow();
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return 0;
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}
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while (0);
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}
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yystackptr[yytop] = state;
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// debugging
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#ifdef YYDEBUG
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if (::yydebug || yydebug) {
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char string[128];
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sprintf(string, "%p: push state %d", (void*)this, (int)state);
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yydebugoutput(string);
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if (yytop > 0) {
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sprintf(string, " covering state %d", (int)yystackptr[yytop - 1]);
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yydebugoutput(string);
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}
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yydebugoutput("\n");
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// output stack contents
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if (::yydebugstack || yydebugstack) {
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yydebugoutput("\nstack");
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int n = sprintf(string, "\n +");
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int i;
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for (i = 0; i < 10; i++) {
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n += sprintf(&string[n], " %5d", (int) i);
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}
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yydebugoutput(string);
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int rows = 1;
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if (yytop >= 0) {
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rows += yytop / 10;
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}
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for (i = 0; i < rows; i++) {
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n = sprintf(string, "\n %5d", (int) (10 * i));
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for (int j = 0; j < 10; j++) {
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int index = 10 * i + j;
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if (index <= yytop) {
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n += sprintf(&string[n], " %5d", (int) yystackptr[index]);
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}
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else {
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n += sprintf(&string[n], " -");
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}
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}
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yydebugoutput(string);
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}
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yydebugoutput("\n\n");
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}
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}
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#endif
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return 1;
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}
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