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  1. #include <stdio.h>
  2. #define STATUS_OK 0x05
  3. #define STATUS_BAD 0x09
  4. #define LOOKUP_CASE(x) case x: return #x
  5.  
  6. const char *lookup_name(int val) {
  7.     switch(val) {
  8.         LOOKUP_CASE(STATUS_OK);
  9.         LOOKUP_CASE(STATUS_BAD);
  10.         default: return "<UNDEFINED>";
  11.     }
  12.     return NULL;
  13. }
  14.  
  15. int main(void) {
  16.     printf("%s\n", lookup_name(STATUS_OK));
  17.     printf("%s\n", lookup_name(STATUS_BAD));
  18.     return 0;
  19. }
Success #stdin #stdout 0.01s 1676KB
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stdin
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Standard input is empty
stdout
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STATUS_OK
STATUS_BAD
https://ideone.com/VyGxz1
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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