Question

How to convert a character to lowercase in C

Answer 1

#include <stdio.h> 
#include <ctype.h> 
 
int main(void)
{   
    char ch = 'Z';

    ch = tolower(ch);

    printf("%c\n", ch);
    
    printf("%c\n", tolower('A'));
     
    return 0;
}
 
    
/*
run:
 
z
a

*/

 

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Answer 2

#include <stdio.h> 
#include <ctype.h> 
 
int main(void)
{   
    char ch = 'Z';
 
    ch = tolower(ch);
 
    putchar(ch);
    putchar('\n');
     
    putchar(tolower('A'));
     
    return 0;
}
 
    
/*
run:
 
z
a

*/

 

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