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Distinguish between the functions islower() and tolower(). |
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Answer» islower( ) and tolower( ): islower(c) is a character testing function defined in ctype.h header file. This function determines if the passed argument, in this case c, is lowercase. It returns a nonzero value if true otherwise 0. tolower (c) is a conversion function defined in ctype.h header file that convert argument c to lowercase. |
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