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#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include "errors.h"
#include "macros.h"
void
(usage)(const char *s, ...)
{
ASSUME(s != nullptr);
ASSUME(mlib_progname() != nullptr);
va_list ap;
va_start(ap, s);
fprintf(stderr, "Usage: %s %s\n", mlib_progname(), s);
while ((s = va_arg(ap, char *)) != nullptr) {
for (size_t i = 0; i < lengthof("Usage: ") - 1; i++)
fputc(' ', stderr);
fprintf(stderr, "%s %s\n", mlib_progname(), s);
}
va_end(ap);
}
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