C ? operator

/* The expression a ? b : c evaluates to b if the value of a is true, 
 * and otherwise to c
 */

// These tests are equivalent :

if (a > b) {
    result = x;
}
else {
    result = y;
}

// and

result = a > b ? x : y;

C ? operator

? : Conditional Expression operator
If Condition is true ? then value X : otherwise value Y

y = x==0 ? 0 : y/x

Source: tutorialspoint.com

C |= operator

// | is the binary "or" operator
// a |= b is equivalent to a = a|b

#include <stdio.h>

int main() {
   int a = 10;  // 00001010 in binary
   int b = 6;   // 00000110 in binary

   printf("Result : %d\n", a |= b);
   // Result is 14 which is OOOO111O in binary

   return 0;
}

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