/* guard.c -- 5% safety boundaries.  See guard.h. */
#include "v4/guard.h"

void v4_guard_fill(v4_cell *band, unsigned n, v4_ucell pattern)
{
    for (unsigned i = 0; i < n; i++) band[i] = (v4_cell)pattern;
}

int v4_guard_intact(const v4_cell *band, unsigned n, v4_ucell pattern)
{
    for (unsigned i = 0; i < n; i++) {
        if ((v4_ucell)band[i] != pattern) return 0;
    }
    return 1;
}