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  1. #include <iostream>
  2. #include <climits>
  3. #include <cfloat>
  4.  
  5. using namespace std;
  6.  
  7. int main()
  8. {
  9. 	// 32 bit 2's comp int and 32 bit IEEE 754 float theoretical max vals
  10.     cout << "2147483647 : 3.4028234*10^38" << endl;
  11.  
  12.     // int and float actuall vals on this system
  13.     cout << INT_MAX << " : " << FLT_MAX << endl; 
  14.  
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 3140KB
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stdin
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Standard input is empty
stdout
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2147483647 : 3.4028234*10^38
2147483647 : 3.40282e+38
https://ideone.com/3B349g
Test if int and float have same byte size.
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
secret

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