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malloc/morecore.c
37 строк
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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) 1991-2026 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/>. */ static bool __always_fail_morecore = false; /* Allocate INCREMENT more bytes of data space, and return the start of data space, or NULL on errors. If INCREMENT is negative, shrink data space. */ void * __glibc_morecore (ptrdiff_t increment) { if (__always_fail_morecore) return NULL; void *result = (void *) __sbrk (increment); if (result == (void *) -1) return NULL; return result; } #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_34) compat_symbol (libc, __glibc_morecore, __default_morecore, GLIBC_2_0); #endif