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  1. #include <stdio.h>
  2. void intMaOp(void *lhs, int rhs) {
  3.   *(int *)lhs *= rhs;
  4. }
  5.  
  6. void *sideEffect(void *input, void (*maOp)(void *, int)) {
  7.   printf("sideEffect\n");
  8.   maOp(input, 2);  // *(int *)input *= 2;
  9.   return input;
  10. }
  11.  
  12. int score99() {
  13.   return 99;
  14. }
  15.  
  16. int score() {
  17.   int someValue = score99();
  18.   return *(int *)sideEffect(&someValue, intMaOp);
  19. }
  20.  
  21. int main() {
  22.   printf("score: %d\n", score());
  23.   return 0;
  24. }
Success #stdin #stdout 0s 2248KB
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stdin
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Standard input is empty
stdout
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sideEffect
score: 198
https://ideone.com/qMewkT
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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