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  1. #define cose_says( ... )
  2.  
  3. //------------------------------------------------------------------------------------------
  4. #include <ctime>
  5.  
  6. class       WATCH
  7. {
  8.     clock_t begin;
  9.  
  10. public:
  11.     auto    operator!() { begin = clock(); }
  12.     auto    operator~()
  13.     {
  14.         return  (float)( clock() - begin ) / CLOCKS_PER_SEC;
  15.     }
  16. };
  17.  
  18. WATCH   watch;
  19.  
  20. //------------------------------------------------------------------------------------------
  21. #include<io.h>
  22.  
  23. class       redirect
  24. {
  25.     FILE*   fp;
  26.     int     fd;
  27.     fpos_t  pos;
  28.  
  29. public:
  30.     redirect( const char* filename, const char* mode = "wb", FILE* as = stdout )
  31.     {
  32.         fgetpos( as, &pos );
  33.         fd = _dup( fileno( as ) );
  34.         fp = freopen( filename, mode, as );
  35.     }
  36.     ~redirect()
  37.     {
  38.         fflush( fp );
  39.         _dup2( fd, fileno( fp ) );
  40.         close( fd );
  41.         clearerr( fp );
  42.         fsetpos( fp, &pos );
  43.     }
  44. };
  45.  
  46. cose_says
  47. (
  48.     생성자에서 표준출력이나 표준입력을 file로 redirect 해주고,
  49.     소멸자에서 원복시키는 구조
  50. )
  51. //------------------------------------------------------------------------------------------
  52.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:21:15: fatal error: io.h: No such file or directory
 #include<io.h>
               ^
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/ghwdls
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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