thodg/libgit2/src/assert_safe.h

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• Hash : a95096ba
  Author :
  Date : 2020-01-12T10:31:07
  

  assert: optionally fall-back to assert(3)
  
  Fall back to the system assert(3) in debug builds, which may aide
  in debugging.
  
  "Safe" assertions can be enabled in debug builds by setting
  GIT_ASSERT_HARD=0.  Similarly, hard assertions can be enabled in
  release builds by setting GIT_ASSERT_HARD to nonzero.
  

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• src/assert_safe.h

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_assert_safe_h__
  #define INCLUDE_assert_safe_h__
  
  /*
   * In a debug build, we'll assert(3) for aide in debugging.  In release
   * builds, we will provide macros that will set an error message that
   * indicate a failure and return.  Note that memory leaks can occur in
   * a release-mode assertion failure -- it is impractical to provide
   * safe clean up routines in these very extreme failures, but care
   * should be taken to not leak very large objects.
   */
  
  #if (defined(_DEBUG) || defined(GIT_ASSERT_HARD)) && GIT_ASSERT_HARD != 0
  # include <assert.h>
  
  # define GIT_ASSERT(expr) assert(expr)
  # define GIT_ASSERT_ARG(expr) assert(expr)
  #else
  
  /**
   * Assert that a consumer-provided argument is valid, setting an
   * actionable error message and returning -1 if it is not.
   */
  # define GIT_ASSERT_ARG(expr) do { \
  		if (!(expr)) { \
  			git_error_set(GIT_ERROR_INVALID, \
  				"invalid argument: '%s'", \
  				#expr); \
  			return -1; \
  		} \
  	} while(0)
  
  /* Internal consistency check to stop the function. */
  # define GIT_ASSERT(expr) do { \
  		if (!(expr)) { \
  			git_error_set(GIT_ERROR_INTERNAL, \
  				"unrecoverable internal error: '%s'", \
  				#expr); \
  			return -1; \
  		} \
  	} while(0)
  
  #endif /* GIT_ASSERT_HARD */
  
  #endif
  

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