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yap-6.3/C/cut_c.c
2005-11-18 18:52:41 +00:00

35 lines
686 B
C
Executable File

#ifdef CUT_C
#include "Yap.h"
#include "cut_c.h"
#include <stdio.h>
void cut_c_initialize(void){
Yap_regp->CUT_C_TOP=(cut_c_str_ptr)Yap_LocalBase;
}
/*Removes a choice_point from the stack*/
void cut_c_pop(void){
cut_c_str_ptr to_delete = NULL;
if (((int)Yap_regp->CUT_C_TOP) == ((int)Yap_LocalBase))
{
return;
}
else
{ /* removes the top element
from the stack */
to_delete = Yap_regp->CUT_C_TOP;
Yap_regp->CUT_C_TOP = to_delete->before;
return;
}
}
/*Insert a choice_point in the stack*/
void cut_c_push(cut_c_str_ptr new_top){
new_top->before = Yap_regp->CUT_C_TOP;
Yap_regp->CUT_C_TOP=new_top;
return;
}
#endif /*CUT_C*/