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  1. #include <stdio.h>
  2.  
  3. typedef struct params_ {
  4.     unsigned long long operand1, operand2;
  5.     unsigned long long value1;
  6.     int operation;
  7. } params_t;
  8.  
  9. int foo(struct params_* p) {
  10.     int retcode = 0;
  11.     // do something with p along operation
  12.     if(p->operation == 0) {
  13.         p->value1 = 100 * p->operand1 + p->operand2;
  14.     }
  15.     else if(p->operation == 1) {
  16.        // ...
  17.     }
  18.     // ...
  19.     else {
  20.         retcode = -1;
  21.     }
  22.     return retcode;
  23. }
  24.  
  25. int main(void) {
  26. 	params_t params;
  27. 	params.operation = 0;
  28. 	params.operand1 = 5;
  29. 	params.operand2 = 42;
  30. 	if(foo(&params) < 0) {
  31. 	    // Error occurred
  32. 	}
  33. 	unsigned long long result = params.value1;
  34. 	return 0;
  35. }
  36.  
Success #stdin #stdout 0s 2004KB
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https://ideone.com/5dJACJ
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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