Question

How to get the number of bytes of a variable in C

Answer 1

#include <stdio.h>

int main()
{
    char ch;
    size_t bytes = sizeof(ch);
    printf("%zu\n",bytes);
    
    int i;
    printf("%zu\n", sizeof(i));
    
    long l;
    printf("%zu\n", sizeof(l));
    
    float f;
    printf("%zu\n", sizeof(f));
    
    double d;
    printf("%zu\n", sizeof(d));

    return 0;
}



/*
run:

1
4
8
4
8

*/

 

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