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COMPILER LIBRARY FUNCTIONS->Detailed Descriptions->isupper()
Summary
#include <ctype.h>
int isupper(int c); Test for upper case letter ('A'-'Z')
Parameter
c Integer to be tested
Description
This function tests the integer passed to it to see if it is an upper case letter: 'A'-'Z'.
The ASCII character set is assumed.
Return Value
TRUE (1) is returned if the character is upper case, otherwise FALSE (0) is returned.