SEI CERT C Coding Standard

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Code Block
bgColor#ccccff
langc
#include <limits.h>
 
signed long s_a;
signed long s_b;
signed long result;

void func(void) {
  /* Initialize s_a, s_b and result*/

  if ( (s_b == 0 ) || ( (s_a == LONG_MIN) && (s_b == -1) ) ) {
    /* Handle error condition */
  } else {
    result = s_a % s_b;
  }
  /* ... */
}

Risk Assessment

A divide by zero can result in abnormal program termination and denial of service.

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