tolower.c
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:1k
- /* tolower.c - character classification and conversion macros */
- /* Copyright 1992-1993 Wind River Systems, Inc. */
- /*
- modification history
- --------------------
- 01f,03mar93,jdi more documentation cleanup for 5.1.
- 01e,07feb93,jdi documentation cleanup for 5.1.
- 01d,13oct92,jdi mangen fixes.
- 01c,20sep92,smb documentation additions
- 01b,04jul92,smb added vxWorks.h and extra documentation
- 01a,24mar92,smb written
- */
- /*
- DESCRIPTION
- INCLUDE FILE: ctype.h
- SEE ALSO: American National Standard X3.159-1989
- NOMANUAL
- */
- #include "vxWorks.h"
- #include "ctype.h"
- #undef tolower
- /*******************************************************************************
- *
- * tolower - convert an upper-case letter to its lower-case equivalent (ANSI)
- *
- * This routine converts an upper-case letter to the corresponding lower-case
- * letter.
- *
- * INCLUDE FILES: ctype.h
- *
- * RETURNS:
- * If <c> is an upper-case letter, it returns the lower-case equivalent;
- * otherwise, it returns the argument unchanged.
- */
- int tolower
- (
- int c /* character to convert */
- )
- {
- return __tolower(c);
- }