Utils/Parser Generator/SOURCE/yyspop.c

@@ -0,0 +1,38 @@
+/************************************************************
+yyspop.c
+This file can be freely modified for the generation of
+custom code.
+
+Copyright (c) 1999 Bumble-Bee Software Ltd.
+************************************************************/
+
+#include "yacc.h"
+
+#ifdef YYDEBUG
+#ifdef YYPROTOTYPE
+void YYCDECL yypop(int num)
+#else
+void YYCDECL yypop(num)
+int num;
+#endif
+{
+	yyassert(num >= 0);
+	yytop -= num;
+	yyassert(yytop >= -1);
+
+	/* debugging */
+	if (yydebug || yyparsedebug) {
+		if (num > 0) {
+			char string[128];
+
+			sprintf(string, "pop %d state(s)", (int) num);
+			yyparsedebugoutput(string);
+			if (yytop >= 0) {
+				sprintf(string, " uncovering state %d", (int) yystackptr[yytop]);
+				yyparsedebugoutput(string);
+			}
+			yyparsedebugoutput("\n");
+		}
+	}
+}
+#endif