Finding maximum and minimum values for data types : Variables « Language Basics « C++ Tutorial

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2. Language Basics
3. Variables

#include <limits>
#include <iostream>
using std::cout;
using std::endl;
using std::numeric_limits;

int main() {
  cout << "The range for type short is from "
       << numeric_limits<short>::min()
       << " to "
       << numeric_limits<short>::max();
  cout << "The range for type int is from "
       << numeric_limits<int>::min()
       << " to "
       << numeric_limits<int>::max();
  cout << "The range for type long is from "
       << numeric_limits<long>::min()
       << " to "
       << numeric_limits<long>::max();
  cout << "The range for type float is from "
       << numeric_limits<float>::min()
       << " to "
       << numeric_limits<float>::max();
  cout << "The range for type double is from "
       << numeric_limits<double>::min()
       << " to "
       << numeric_limits<double>::max();
  cout << "The range for type long double is from "
       << numeric_limits<long double>::min()
       << " to "
       << numeric_limits<long double>::max();
  cout << endl;
  return 0;
}

The range for type short is from -32768 to 32767The range for type int is from -
2147483648 to 2147483647The range for type long is from -2147483648 to 214748364
7The range for type float is from 1.17549e-038 to 3.40282e+038The range for type
 double is from 2.22507e-308 to 1.79769e+308The range for type long double is fr
om 0 to 1.#INF