s_tolower.c 595 B

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  1. /*
  2. * This file is part of the UCB release of Plan 9. It is subject to the license
  3. * terms in the LICENSE file found in the top-level directory of this
  4. * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
  5. * part of the UCB release of Plan 9, including this file, may be copied,
  6. * modified, propagated, or distributed except according to the terms contained
  7. * in the LICENSE file.
  8. */
  9. #include <u.h>
  10. #include <libc.h>
  11. #include "String.h"
  12. /* convert String to lower case */
  13. void
  14. s_tolower(String *sp)
  15. {
  16. char *cp;
  17. for(cp=sp->ptr; *cp; cp++)
  18. *cp = tolower(*cp);
  19. }