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  1. #include <stdio.h>
  2.  
  3. #define VA_EXAMPLE(...) (varargsExample((NameAndLong[]){__VA_ARGS__}))
  4. typedef struct NameAndLong { const char* name; long long value; } NameAndLong;
  5. long varargsExample(NameAndLong things[]);
  6.  
  7. int main(int argc, char **argv)
  8. {
  9.     VA_EXAMPLE(
  10.       {"TestInt", 0},
  11.       {"TestIntNegative", -1},
  12.       {"TestLong", 0},
  13.       {"TestSomethingBig",1LL<<62},
  14.       {"TestLongNegative", -1},
  15.       {NULL});
  16.     return 0;
  17. }
  18.  
  19. long varargsExample(NameAndLong things[])
  20. {
  21.     const char * name;
  22.     long long nextValue;
  23.     while ((name = things->name) != 0)
  24.     {
  25.         nextValue = things++->value;
  26.         printf("Got [%s] with value [%lld]\n", name, nextValue);
  27.     }
  28.     return 0;
  29. }
Success #stdin #stdout 0s 2160KB
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stdin
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Standard input is empty
stdout
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Got [TestInt] with value [0]
Got [TestIntNegative] with value [-1]
Got [TestLong] with value [0]
Got [TestSomethingBig] with value [4611686018427387904]
Got [TestLongNegative] with value [-1]
https://ideone.com/bOXAsV
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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