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  1. #include<stdio.h>
  2. #include<stdint.h>
  3.  
  4. int main(){
  5.  
  6.    double b = 0.00390625;
  7.    uint64_t *ptr_b;
  8.    int i;
  9.  
  10.    ptr_b = (uint64_t *)&b;
  11.    for(i = 63; i >= 0; --i){
  12.       if( *ptr_b & ((uint64_t)1 << i)) printf("1");
  13.       else printf("0");
  14.    }
  15.  
  16.    return 0;
  17. }
Success #stdin #stdout 0s 9432KB
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stdin
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Standard input is empty
stdout
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0011111101110000000000000000000000000000000000000000000000000000
https://ideone.com/WOaS2E
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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