aboutsummaryrefslogtreecommitdiff
path: root/malloc/malloc.h
diff options
context:
space:
mode:
Diffstat (limited to 'malloc/malloc.h')
-rw-r--r--malloc/malloc.h51
1 files changed, 38 insertions, 13 deletions
diff --git a/malloc/malloc.h b/malloc/malloc.h
index 81966b856c..a93c77a853 100644
--- a/malloc/malloc.h
+++ b/malloc/malloc.h
@@ -1,5 +1,5 @@
/* Prototypes and definition for malloc implementation.
- Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1999 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
@@ -55,11 +55,36 @@
# define __malloc_ptrdiff_t ptrdiff_t
#endif
-#if defined __STDC__ || defined __cplusplus || defined __GNUC__
-# define __MALLOC_P(args) args
-#else
-# define __MALLOC_P(args) ()
-#endif
+#ifdef __GNUC__
+
+/* GCC can always grok prototypes. For C++ programs we add throw()
+ to help it optimize the function calls. But this works only with
+ gcc 2.8.x and egcs. */
+# if defined __cplusplus && __GNUC_MINOR__ >= 8
+# define __THROW throw ()
+# else
+# define __THROW
+# endif
+# define __MALLOC_P(args) args __THROW
+/* This macro will be used for functions which might take C++ callback
+ functions. */
+# define __MALLOC_PMT(args) args
+
+#else /* Not GCC. */
+
+# if (defined __STDC__ && __STDC__) || defined __cplusplus
+
+# define __MALLOC_P(args) args
+# define __MALLOC_PMT(args) args
+
+# else /* Not ANSI C or C++. */
+
+# define __MALLOC_P(args) () /* No prototypes. */
+# define __MALLOC_PMT(args) ()
+
+# endif /* ANSI C or C++. */
+
+#endif /* GCC. */
#ifndef NULL
# ifdef __cplusplus
@@ -114,7 +139,7 @@ extern __malloc_ptr_t pvalloc __MALLOC_P ((size_t __size));
/* Underlying allocation function; successive calls should return
contiguous pieces of memory. */
-extern __malloc_ptr_t (*__morecore) __MALLOC_P ((ptrdiff_t __size));
+extern __malloc_ptr_t (*__morecore) __MALLOC_PMT ((ptrdiff_t __size));
/* Default value of `__morecore'. */
extern __malloc_ptr_t __default_morecore __MALLOC_P ((ptrdiff_t __size));
@@ -180,18 +205,18 @@ extern int malloc_set_state __MALLOC_P ((__malloc_ptr_t __ptr));
#if defined __GLIBC__ || defined MALLOC_HOOKS
/* Hooks for debugging versions. */
-extern void (*__malloc_initialize_hook) __MALLOC_P ((void));
-extern void (*__free_hook) __MALLOC_P ((__malloc_ptr_t __ptr,
+extern void (*__malloc_initialize_hook) __MALLOC_PMT ((void));
+extern void (*__free_hook) __MALLOC_PMT ((__malloc_ptr_t __ptr,
__const __malloc_ptr_t));
-extern __malloc_ptr_t (*__malloc_hook) __MALLOC_P ((size_t __size,
+extern __malloc_ptr_t (*__malloc_hook) __MALLOC_PMT ((size_t __size,
__const __malloc_ptr_t));
-extern __malloc_ptr_t (*__realloc_hook) __MALLOC_P ((__malloc_ptr_t __ptr,
+extern __malloc_ptr_t (*__realloc_hook) __MALLOC_PMT ((__malloc_ptr_t __ptr,
size_t __size,
__const __malloc_ptr_t));
-extern __malloc_ptr_t (*__memalign_hook) __MALLOC_P ((size_t __size,
+extern __malloc_ptr_t (*__memalign_hook) __MALLOC_PMT ((size_t __size,
size_t __alignment,
__const __malloc_ptr_t));
-extern void (*__after_morecore_hook) __MALLOC_P ((void));
+extern void (*__after_morecore_hook) __MALLOC_PMT ((void));
/* Activate a standard set of debugging hooks. */
extern void __malloc_check_init __MALLOC_P ((void));