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  1. #include <cstdio>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	const size_t buffer_size = 16;
  6.  
  7. double value = 3.40;
  8. char buffer[buffer_size];
  9. int result = snprintf(buffer, buffer_size, "%.2f", value);
  10.  
  11. if(result > 0 && result < buffer_size)
  12.     printf("Length of string: %d (%s)\n", result, buffer);
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3140KB
comments (?)
stdin
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Standard input is empty
stdout
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Length of string: 4 (3.40)
https://ideone.com/nwJ5k8
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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