X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fxalloc.h;h=5f891457ba7476f5094cff1516d8093ff3a227d4;hb=cd56634a4a8179fd5a4419fbb3e27211b042ab1c;hp=c1bbe7e5b6cedda5e8e39b515fada57a40fc9f41;hpb=b6772983c800c6faee7fc793b83975afb6d58bcc;p=gnulib.git
diff --git a/lib/xalloc.h b/lib/xalloc.h
index c1bbe7e5b..5f891457b 100644
--- a/lib/xalloc.h
+++ b/lib/xalloc.h
@@ -1,6 +1,6 @@
/* xalloc.h -- malloc with out-of-memory checking
- Copyright (C) 1990-2000, 2003-2004, 2006-2011 Free Software Foundation, Inc.
+ Copyright (C) 1990-2000, 2003-2004, 2006-2014 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -16,41 +16,43 @@
along with this program. If not, see . */
#ifndef XALLOC_H_
-# define XALLOC_H_
+#define XALLOC_H_
-# include
+#include
-# include "xalloc-oversized.h"
+#include "xalloc-oversized.h"
-# ifdef __cplusplus
-extern "C" {
-# endif
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef XALLOC_INLINE
+# define XALLOC_INLINE _GL_INLINE
+#endif
+#ifdef __cplusplus
+extern "C" {
+#endif
-# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)
-# define _GL_ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
-# else
-# define _GL_ATTRIBUTE_NORETURN /* empty */
-# endif
-# if __GNUC__ >= 3
-# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
-# else
-# define _GL_ATTRIBUTE_MALLOC
-# endif
+#if __GNUC__ >= 3
+# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
+#else
+# define _GL_ATTRIBUTE_MALLOC
+#endif
-# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
-# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
-# else
-# define _GL_ATTRIBUTE_ALLOC_SIZE(args)
-# endif
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
+#else
+# define _GL_ATTRIBUTE_ALLOC_SIZE(args)
+#endif
/* This function is always triggered when memory is exhausted.
It must be defined by the application, either explicitly
or by using gnulib's xalloc-die module. This is the
function to call when one wants the program to die because of a
memory allocation failure. */
-extern void xalloc_die (void) _GL_ATTRIBUTE_NORETURN;
+extern _Noreturn void xalloc_die (void);
void *xmalloc (size_t s)
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((1));
@@ -73,45 +75,31 @@ char *xstrdup (char const *str)
/* Allocate an object of type T dynamically, with error checking. */
/* extern t *XMALLOC (typename t); */
-# define XMALLOC(t) ((t *) xmalloc (sizeof (t)))
+#define XMALLOC(t) ((t *) xmalloc (sizeof (t)))
/* Allocate memory for N elements of type T, with error checking. */
/* extern t *XNMALLOC (size_t n, typename t); */
-# define XNMALLOC(n, t) \
- ((t *) (sizeof (t) == 1 ? xmalloc (n) : xnmalloc (n, sizeof (t))))
+#define XNMALLOC(n, t) \
+ ((t *) (sizeof (t) == 1 ? xmalloc (n) : xnmalloc (n, sizeof (t))))
/* Allocate an object of type T dynamically, with error checking,
and zero it. */
/* extern t *XZALLOC (typename t); */
-# define XZALLOC(t) ((t *) xzalloc (sizeof (t)))
+#define XZALLOC(t) ((t *) xzalloc (sizeof (t)))
/* Allocate memory for N elements of type T, with error checking,
and zero it. */
/* extern t *XCALLOC (size_t n, typename t); */
-# define XCALLOC(n, t) \
- ((t *) (sizeof (t) == 1 ? xzalloc (n) : xcalloc (n, sizeof (t))))
+#define XCALLOC(n, t) \
+ ((t *) (sizeof (t) == 1 ? xzalloc (n) : xcalloc (n, sizeof (t))))
-# if HAVE_INLINE
-# define static_inline static inline
-# else
-void *xnmalloc (size_t n, size_t s)
- _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((1, 2));
-void *xnrealloc (void *p, size_t n, size_t s)
- _GL_ATTRIBUTE_ALLOC_SIZE ((2, 3));
-void *x2nrealloc (void *p, size_t *pn, size_t s);
-char *xcharalloc (size_t n)
- _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((1));
-# endif
-
-# ifdef static_inline
-
/* Allocate an array of N objects, each with S bytes of memory,
dynamically, with error checking. S must be nonzero. */
-static_inline void *xnmalloc (size_t n, size_t s)
+XALLOC_INLINE void *xnmalloc (size_t n, size_t s)
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((1, 2));
-static_inline void *
+XALLOC_INLINE void *
xnmalloc (size_t n, size_t s)
{
if (xalloc_oversized (n, s))
@@ -122,9 +110,9 @@ xnmalloc (size_t n, size_t s)
/* Change the size of an allocated block of memory P to an array of N
objects each of S bytes, with error checking. S must be nonzero. */
-static_inline void *xnrealloc (void *p, size_t n, size_t s)
+XALLOC_INLINE void *xnrealloc (void *p, size_t n, size_t s)
_GL_ATTRIBUTE_ALLOC_SIZE ((2, 3));
-static_inline void *
+XALLOC_INLINE void *
xnrealloc (void *p, size_t n, size_t s)
{
if (xalloc_oversized (n, s))
@@ -187,7 +175,7 @@ xnrealloc (void *p, size_t n, size_t s)
*/
-static_inline void *
+XALLOC_INLINE void *
x2nrealloc (void *p, size_t *pn, size_t s)
{
size_t n = *pn;
@@ -198,9 +186,9 @@ x2nrealloc (void *p, size_t *pn, size_t s)
{
/* The approximate size to use for initial small allocation
requests, when the invoking code specifies an old size of
- zero. 64 bytes is the largest "small" request for the
- GNU C library malloc. */
- enum { DEFAULT_MXFAST = 64 };
+ zero. This is the largest "small" request for the GNU C
+ library malloc. */
+ enum { DEFAULT_MXFAST = 64 * sizeof (size_t) / 4 };
n = DEFAULT_MXFAST / s;
n += !n;
@@ -224,17 +212,15 @@ x2nrealloc (void *p, size_t *pn, size_t s)
/* Return a pointer to a new buffer of N bytes. This is like xmalloc,
except it returns char *. */
-static_inline char *xcharalloc (size_t n)
+XALLOC_INLINE char *xcharalloc (size_t n)
_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((1));
-static_inline char *
+XALLOC_INLINE char *
xcharalloc (size_t n)
{
return XNMALLOC (n, char);
}
-# endif
-
-# ifdef __cplusplus
+#ifdef __cplusplus
}
/* C++ does not allow conversions from void * to other pointer types
@@ -271,7 +257,7 @@ xmemdup (T const *p, size_t s)
return (T *) xmemdup ((void const *) p, s);
}
-# endif
+#endif
#endif /* !XALLOC_H_ */