Libc-825.24.tar.gz

[apple/libc.git] / regex / TRE / lib / xmalloc.h

diff --git a/regex/TRE/lib/xmalloc.h b/regex/TRE/lib/xmalloc.h
new file mode 100644 (file)
index 0000000..ce310af
--- /dev/null
+++ b/regex/TRE/lib/xmalloc.h
@@ -0,0 +1,77 @@
+/*
+  xmalloc.h - Simple malloc debugging library API
+
+  This software is released under a BSD-style license.
+  See the file LICENSE for details and copyright.
+
+*/
+
+#ifndef _XMALLOC_H
+#define _XMALLOC_H 1
+
+void *xmalloc_impl(size_t size, const char *file, int line, const char *func);
+void *xcalloc_impl(size_t nmemb, size_t size, const char *file, int line,
+                  const char *func);
+void xfree_impl(void *ptr, const char *file, int line, const char *func);
+void *xrealloc_impl(void *ptr, size_t new_size, const char *file, int line,
+                   const char *func);
+int xmalloc_dump_leaks(void);
+void xmalloc_configure(int fail_after);
+
+
+#ifndef XMALLOC_INTERNAL
+#ifdef MALLOC_DEBUGGING
+
+/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
+   which contains the name of the function currently being defined.
+#  define __XMALLOC_FUNCTION    __PRETTY_FUNCTION__
+   This is broken in G++ before version 2.6.
+   C9x has a similar variable called __func__, but prefer the GCC one since
+   it demangles C++ function names.  */
+# ifdef __GNUC__
+#  if __GNUC__ > 2 || (__GNUC__ == 2 \
+                      && __GNUC_MINOR__ >= (defined __cplusplus ? 6 : 4))
+#   define __XMALLOC_FUNCTION   __PRETTY_FUNCTION__
+#  else
+#   define __XMALLOC_FUNCTION   ((const char *) 0)
+#  endif
+# else
+#  if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#   define __XMALLOC_FUNCTION   __func__
+#  else
+#   define __XMALLOC_FUNCTION   ((const char *) 0)
+#  endif
+# endif
+
+#define xmalloc(size) xmalloc_impl(size, __FILE__, __LINE__, \
+                                  __XMALLOC_FUNCTION)
+#define xcalloc(nmemb, size) xcalloc_impl(nmemb, size, __FILE__, __LINE__, \
+                                         __XMALLOC_FUNCTION)
+#define xfree(ptr) xfree_impl(ptr, __FILE__, __LINE__, __XMALLOC_FUNCTION)
+#define xrealloc(ptr, new_size) xrealloc_impl(ptr, new_size, __FILE__, \
+                                             __LINE__, __XMALLOC_FUNCTION)
+#undef malloc
+#undef calloc
+#undef free
+#undef realloc
+
+#define malloc USE_XMALLOC_INSTEAD_OF_MALLOC
+#define calloc USE_XCALLOC_INSTEAD_OF_CALLOC
+#define free   USE_XFREE_INSTEAD_OF_FREE
+#define realloc USE_XREALLOC_INSTEAD_OF_REALLOC
+
+#else /* !MALLOC_DEBUGGING */
+
+#include <stdlib.h>
+
+#define xmalloc(size) malloc(size)
+#define xcalloc(nmemb, size) calloc(nmemb, size)
+#define xfree(ptr) free(ptr)
+#define xrealloc(ptr, new_size) realloc(ptr, new_size)
+
+#endif /* !MALLOC_DEBUGGING */
+#endif /* !XMALLOC_INTERNAL */
+
+#endif /* _XMALLOC_H */
+
+/* EOF */