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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.     int v, w, x, y;
  5.  
  6.     // absolute value
  7.     v =  7; printf("abs(%d) = %d\n", v, (v>0)*v+(v<0)*-v);
  8.     v = -7; printf("abs(%d) = %d\n", v, (v>0)*v+(v<0)*-v);
  9.  
  10.     // power of two
  11.     w = 7; printf("is %d a power of two: %d\n", w, w && !(w & (w-1)));
  12.     w = 8; printf("is %d a power of two: %d\n", w, w && !(w & (w-1)));
  13.  
  14.     // min and max
  15.     x = 7; y = 8; printf("min(%d, %d) = %d\n", x, y, y ^ ((x ^ y) & -(x < y)));
  16.     x = 7; y = 8; printf("max(%d, %d) = %d\n", x, y, x ^ ((x ^ y) & -(x < y)));
  17.  
  18.     return 0;
  19. }
  20.  
Success #stdin #stdout 0s 9432KB
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stdin
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Standard input is empty
stdout
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abs(7) = 7
abs(-7) = 7
is 7 a power of two: 0
is 8 a power of two: 1
min(7, 8) = 7
max(7, 8) = 8
https://ideone.com/KztXh3
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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