Benchmark for @wesen

stupid_shit.c

#include <assert.h>
#include <stdio.h>

int main(void) {
	unsigned int criteria[2] = { 0 };
	
#ifndef UNBUFFERED
    int n = setvbuf(stdin, NULL, _IOFBF, 65536);
    assert(n == 0);

	for (;;) {
		int c = getchar();
		if (c < 0) {
			break;
		}
		criteria[c == 'a']++;
	}
#else
    char buffer[65536];
    for (;;) {
    	size_t size = fread(buffer, 1, sizeof buffer, stdin);
    	if (size == 0) {
    		break;
    	}
    	for (size_t x = 0; x < size; x++) {
    		criteria[buffer[x] == 'a']++;
    	}
    }
#endif

    printf("%u %u\n", criteria[0], criteria[1]);
	
	return 0;
}