tolower.c File Reference

#include <ctype.h>

Include dependency graph for tolower.c:

Functions
int	tolower (int c)
	Converts the given character to lowercase. More...

Function Documentation

tolower()

int tolower

(

int

ch

)

Converts the given character to lowercase.

Converts the given character to lowercase according to the character conversion rules defined by the default local, i.e. the following uppercase letters (ABCDEFGHIJKLMNOPQRSTUVWXYZ) are replaced with respective lowercase letters (abcdefghijklmnopqrstuvwxyz).

The behavior is undefined if the value of ch is not representable as unsigned char and is not equal to EOF.

Parameters

ch	character to be converted.

Returns

Lowercase version of ch or unmodified ch if no lowercase version is listed in the default locale.

References isupper().

Referenced by bad_input(), good_input(), and towlower().

Here is the caller graph for this function: