GSX.c

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#include <grass/gstypes.h>

void (*Cxl_func) ();
void (*Swap_func) ();

static int Cxl = 0;

int GS_check_cancel(void)
{
    Cxl_func();

    return (Cxl);
}

void GS_set_cancel(int c)
{
    Cxl = c;

    return;
}

void GS_set_cxl_func(void (*f) (void))
{
    Cxl_func = f;

    return;
}

void GS_set_swap_func(void (*f) (void))
{
    Swap_func = f;

    return;
}