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C LIBRARY FUNCTIONS->Detailed Descriptions->tolower()

Summary

#include <ctype.h>

int tolower(int c);    convert character to lower case


Parameter

c    character to be converted


Description

If c is an upper case letter, then this function converts it to lower case.  Otherwise c is unchanged.


Return Value

The new value of c is returned.  Converted if it was upper case, otherwise unchanged.