Should I use int64_t over long long

SPyofgame's blog

By SPyofgame, history, 4 years ago, In English

I am wondering if I could always replace all long long type into int64_t type without breaking the program ? Will it somehow affects the program or remains the same ?

And how about the relationship between int and int32_t types

#asking

SPyofgame
4 years ago
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mehrunesartem

4 years ago, # |

← Rev. 2 →

On some platforms (e.g. Yandex.Contest GCC x64) the following code will cause a compilation error

Spoiler

#include <bits/stdc++.h>

using namespace std;

int main() {
  int64_t a = 2;
  cout << max(a, 3LL) << '\n';
  return 0;
}

error: no matching function for call to ‘max(int64_t&, long long int)’
   cout << max(a, 3LL) << '\n';
note:   deduced conflicting types for parameter ‘const _Tp’ (‘long int’ and ‘long long int’)
   cout << max(a, 3LL) << '\n';

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