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Edit File: mcheck.h

/* Copyright (C) 1996-2022 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/>. */ #ifndef _MCHECK_H #define _MCHECK_H 1 #include <features.h> __BEGIN_DECLS /* Return values for `mprobe': these are the kinds of inconsistencies that `mcheck' enables detection of. */ enum mcheck_status { MCHECK_DISABLED = -1, /* Consistency checking is not turned on. */ MCHECK_OK, /* Block is fine. */ MCHECK_FREE, /* Block freed twice. */ MCHECK_HEAD, /* Memory before the block was clobbered. */ MCHECK_TAIL /* Memory after the block was clobbered. */ }; /* Activate a standard collection of debugging hooks. This must be called before `malloc' is ever called. ABORTFUNC is called with an error code (see enum above) when an inconsistency is detected. If ABORTFUNC is null, the standard function prints on stderr and then calls `abort'. */ extern int mcheck (void (*__abortfunc)(enum mcheck_status)) __THROW; /* Similar to `mcheck' but performs checks for all block whenever one of the memory handling functions is called. This can be very slow. */ extern int mcheck_pedantic (void (*__abortfunc)(enum mcheck_status)) __THROW; /* Force check of all blocks now. */ extern void mcheck_check_all (void); /* Check for aberrations in a particular malloc'd block. You must have called `mcheck' already. These are the same checks that `mcheck' does when you free or reallocate a block. */ extern enum mcheck_status mprobe (void *__ptr) __THROW; /* Activate a standard collection of tracing hooks. */ extern void mtrace (void) __THROW; extern void muntrace (void) __THROW; __END_DECLS #endif /* mcheck.h */