int toupper ( int  c )

inline

Convert lowercase letter to uppercase.

Converts parameter c to its uppercase equivalent if c is a lowercase letter and has an uppercase equivalent. If no such conversion is possible, the value returned is c unchanged.

Parameters

c	Lowercase letter character to be converted.

Returns

The uppercase equivalent to c, if such value exists, or c (unchanged) otherwise..

Examples:

ex_ctype.spc, and ex_toupper.spc.