minmax.c

#include <stdio.h>

#define CHAR_BIT 8

int min(int x, int y)
{
     return y ^ ((x ^ y) & -(x < y)); // min(x, y)
}

int max(int x, int y)
{
     return x ^ ((x ^ y) & -(x < y)); // max(x, y)
}

int min_dirty(int x, int y)
{
     return y + ((x - y) & ((x - y) >> (sizeof(int) * CHAR_BIT - 1))); // min(x, y)
}

int max_dirty(int x, int y)
{
     return x - ((x - y) & ((x - y) >> (sizeof(int) * CHAR_BIT - 1))); // max(x, y)
}

int main(int argc, char * argv[])
{
     printf("min test: %d\n", min(2, 3));
     printf("max test: %d\n", max(2, 3));
     printf("min test: %d\n", min(-2, -3));
     printf("max test: %d\n", max(-2, -3));

     printf("min test: %d\n", min_dirty(2, 3));
     printf("max test: %d\n", max_dirty(2, 3));
     printf("min test: %d\n", min_dirty(-2, -3));
     printf("max test: %d\n", max_dirty(-2, -3));

     return 0;
}