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string/stpncpy.c
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Copyright (C) 1993-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #ifdef _LIBC # include <string.h> #else # include <sys/types.h> #endif #ifndef STPNCPY # ifdef weak_alias # define STPNCPY __stpncpy weak_alias (__stpncpy, stpncpy) # else # define STPNCPY stpncpy # endif #endif /* Copy no more than N characters of SRC to DEST, returning the address of the terminating '\0' in DEST, if any, or else DEST + N. */ char * STPNCPY (char *dest, const char *src, size_t n) { size_t size = __strnlen (src, n); memcpy (dest, src, size); dest += size; if (size == n) return dest; return memset (dest, '\0', n - size); } #ifdef weak_alias libc_hidden_def (__stpncpy) #endif