reduced testcase

fxprintf.i (text/plain), 324 bytes, created by SpanKY on 2013-12-24 20:58:08 UTC

extern void assert_fail(void) __attribute__ ((__noreturn__));
void __fxprintf(int _mode, const char *fmt, ...)
{
    if (_mode) {
        unsigned int len = strlen(fmt) + 1;
        unsigned int wfmt[len];
        for (unsigned int i = 0; i < len; ++i)
            if (fmt[i] & ~0x7f)
                assert_fail();
    }
}