_strlwr(), _strupr() change case of characters	Function
	SYNOPSIS DESCRIPTION PARAMETERS RETURN VALUES CONFORMANCE MULTITHREAD SAFETY LEVEL PORTING ISSUES AVAILABILITY SEE ALSO

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SYNOPSIS

#include <string.h>

char *_strlwr(char *str);

char *_strupr(char *str);

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DESCRIPTION

The _strlwr() function converts any uppercase characters in its argument to lowercase. The _strupr() function converts any lowercase characters in its argument to uppercase. These functions are affected by the LC_CTYPE setting in the current locale.

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PARAMETERS

str 

Specifies the string to be converted to lowercase or uppercase.

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RETURN VALUES

The _strlwr() and _strupr() functions return their argument.

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CONFORMANCE

MKS Toolkit UNIX APIs extension

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MULTITHREAD SAFETY LEVEL

MT-Safe, with exceptions.

These functions are MT-Safe as long as no thread calls setlocale() while these functions are executing.

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PORTING ISSUES

None.

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AVAILABILITY

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

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SEE ALSO

Functions:

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

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MKS Toolkit 9.3 Documentation Build 6.