_toupper() convert lowercase letter to uppercase	Function
	SYNOPSIS DESCRIPTION PARAMETERS RETURN VALUES CONFORMANCE MULTITHREAD SAFETY LEVEL PORTING ISSUES AVAILABILITY SEE ALSO

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SYNOPSIS

#include <ctype.h>

int _toupper(int c);

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DESCRIPTION

The macro _toupper() is equivalent to toupper() except that the argument c must be a lowercase letter.

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PARAMETERS

c 

Is an integer, whose value is representable as a lowercase letter.

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RETURN VALUES

If successful, _toupper() returns the uppercase letter corresponding to the argument passed. Arguments outside the domain cause undefined results.

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CONFORMANCE

UNIX 98.

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MULTITHREAD SAFETY LEVEL

MT-Safe.

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PORTING ISSUES

None.

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AVAILABILITY

PTC MKS Toolkit for Professional Developers
PTC MKS Toolkit for Professional Developers 64-Bit Edition
PTC MKS Toolkit for Enterprise Developers
PTC MKS Toolkit for Enterprise Developers 64-Bit Edition

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SEE ALSO

Functions:

_tolower(), isascii(), islower(), isupper(), setlocale(), tolower(), toupper()

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PTC MKS Toolkit 10.4 Documentation Build 39.