stpncpy.c 610 B

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  1. /*
  2. * Copyright (C) 2002 Manuel Novoa III
  3. * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
  4. *
  5. * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
  6. */
  7. #include "_string.h"
  8. #ifdef WANT_WIDE
  9. # define Wstpncpy wcpncpy
  10. #else
  11. # define Wstpncpy stpncpy
  12. #endif
  13. Wchar *Wstpncpy(register Wchar * __restrict s1,
  14. register const Wchar * __restrict s2,
  15. size_t n)
  16. {
  17. Wchar *s = s1;
  18. const Wchar *p = s2;
  19. while (n) {
  20. if ((*s = *s2) != 0) s2++; /* Need to fill tail with 0s. */
  21. ++s;
  22. --n;
  23. }
  24. return s1 + (s2 - p);
  25. }
  26. #ifndef WANT_WIDE
  27. libc_hidden_def(stpncpy)
  28. #endif