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Data type of character constants in C and C++

  • Difficulty Level : Easy
  • Last Updated : 29 May, 2017

In C, data type of character constants is int, but in C++, data type of same is char.

If we save below program as test.c then we get 4 as output (assuming size of integer is 4 bytes) and if we save the same program as test.cpp then we get 1(assuming size of char is 1 byte)

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#include<stdio.h>
int main()
{
  printf("%d", sizeof('a'));
    
  getchar();
  return 0;

References:
http://en.wikipedia.org/wiki/C_syntax#Character_constants

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