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  1. #include <stdio.h>
  2. #include <time.h>
  3.  
  4. void sleep( unsigned long waitms )
  5. {
  6.    clock_t goal;
  7.    goal = (double)CLOCKS_PER_SEC*waitms/1000. + clock();
  8.    while( goal > clock() ) ;
  9. }
  10.  
  11. int main()
  12. {
  13.    clock_t start;
  14.  
  15.    start = clock();
  16.    sleep( 1234 );
  17.    printf( "%f seconds\n", (double)(clock() - start) / CLOCKS_PER_SEC );
  18.  
  19.    return 0;
  20. }
  21.  
  22.  
  23.  
Success #stdin #stdout 1.23s 2112KB
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Standard input is empty
stdout
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1.234002 seconds
https://ideone.com/B6vtT0
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
public

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