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  1. #include <stdio.h>
  2.  
  3. int main() {
  4. #ifdef __GNUC__
  5.     #ifdef __clang__
  6.         puts("Compiler: clang");
  7.     #else
  8.     puts("Compiler: GCC");
  9. #endif
  10. #elif __TINYC__
  11.     puts("Compiler: TCC");
  12. #elif _MSC_VER
  13.     puts("Compiler: MSVC");
  14. #endif
  15.  
  16. #if (_WIN64 || __LP64__)
  17.     puts("Bitness: 64");
  18. #else
  19.     puts("Bitness: 32");
  20. #endif
  21.  
  22. #ifdef NDEBUG
  23.     puts("Asserts: disabled");
  24. #else
  25.     puts("Asserts: enabled");
  26. #endif
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5320KB
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stdin
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Standard input is empty
stdout
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Compiler: GCC
Bitness: 64
Asserts: enabled
https://ideone.com/E71pLX
language:
C (gcc 8.3)
created:
23 hours ago
visibility:
public

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