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_tolower

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_tolower: transliterate uppercase characters to lowercase

NAME

_tolower - transliterate uppercase characters to lowercase

SYNOPSIS

#include <ctype.h> int _tolower(int c);

DESCRIPTION

The _tolower() macro shall be equivalent to tolower(c) except that the application shall ensure that the argument c is an uppercase letter.
RETURN VALUE
Upon successful completion, _tolower() shall return the lowercase letter corresponding to the argument passed.
ERRORS
No errors are defined. The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.
SEE ALSO
tolower() , isupper() , the Base Definitions volume of IEEE Std 1003.1-2001, Chapter 7, Locale, <ctype.h>
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at //www.opengroup.org/unix/online.html . _TOLOWER(3)
 
 
 

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