C Reference Convert to lower case: tolower()

The function tolower() returns a lowercase character of the character that is put in.

tolower() source code example:


int main()
	int counter=0;
	char mychar;
	char str[]="TeSt THis seNTeNce.\n";

	while (str[counter])
		putchar (tolower(mychar));
	return 0;

Note: the sentence will be converted to all lowercase letters.

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There are currently 2 responses to “C Reference Convert to lower case: tolower()”

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  1. mash on February 10th, 2010:

    Thank u so much =).

  2. hemant sehgal on April 11th, 2014:

    thanx!! it helped me at a crucial time!!