Pulled in aligned_alloc from dlmalloc.c (dlmemalign).

[pdclib] / includes / stdlib.h

diff --git a/includes/stdlib.h b/includes/stdlib.h
index 9ed464efb237c06d073b88320a34976800c72eab..b94ceafeeeea2fca5a61fe6fde5b11b12f4c2b69 100644 (file)
--- a/includes/stdlib.h
+++ b/includes/stdlib.h
@@ -1,4 +1,4 @@
-/* 7.20 General utilities <stdlib.h>
+/* General utilities <stdlib.h>
 
    This file is part of the Public Domain C Library (PDCLib).
    Permission is granted to use, modify, and / or redistribute at will.
@@ -7,7 +7,10 @@
 #ifndef _PDCLIB_STDLIB_H
 #define _PDCLIB_STDLIB_H _PDCLIB_STDLIB_H
 #include <_PDCLIB_int.h>
-_PDCLIB_BEGIN_EXTERN_C
+
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 #ifndef _PDCLIB_SIZE_T_DEFINED
 #define _PDCLIB_SIZE_T_DEFINED _PDCLIB_SIZE_T_DEFINED
@@ -92,19 +95,26 @@ void srand( unsigned int seed ) _PDCLIB_nothrow;
 
 /* Memory management functions */
 
-/* Allocate a chunk of heap memory of given size. If request could not be
+/* Allocate a chunk of memory of given size. If request could not be
    satisfied, return NULL. Otherwise, return a pointer to the allocated
    memory. Memory contents are undefined.
 */
 void * malloc( size_t size ) _PDCLIB_nothrow;
 
-/* Allocate a chunk of heap memory that is large enough to hold nmemb elements
-   of the given size, and zero-initialize that memory. If request could not be
+/* Allocate a chunk of memory that is large enough to hold nmemb elements of
+   the given size, and zero-initialize that memory. If request could not be
    satisfied, return NULL. Otherwise, return a pointer to the allocated
    memory.
 */
 void * calloc( size_t nmemb, size_t size ) _PDCLIB_nothrow;
 
+/* Allocate a chunk of memory of given size, with specified alignment (which
+   must be a power of two; if it is not, the next greater power of two is
+   used). If request could not be satisfied, return NULL. Otherwise, return
+   a pointer to the allocated memory.
+*/
+void * aligned_alloc( size_t alignment, size_t size ) _PDCLIB_nothrow;
+
 /* De-allocate a chunk of heap memory previously allocated using malloc(),
    calloc(), or realloc(), and pointed to by ptr. If ptr does not match a
    pointer previously returned by the mentioned allocation functions, or
@@ -148,7 +158,7 @@ _PDCLIB_noreturn void abort( void ) _PDCLIB_nothrow;
    reverse order of registration (last-in, first-out).
    Returns zero if registration is successfull, nonzero if it failed.
 */
-int atexit( void (*func)( void ) ) _PDCLIB_nothrow; 
+int atexit( void (*func)( void ) ) _PDCLIB_nothrow;
 
 /* Normal process termination. Functions registered by atexit() (see above) are
    called, streams flushed, files closed and temporary files removed before the
@@ -248,5 +258,8 @@ size_t mbstowcs( wchar_t * _PDCLIB_restrict pwcs, const char * _PDCLIB_restrict
 size_t wcstombs( char * _PDCLIB_restrict s, const wchar_t * _PDCLIB_restrict pwcs, size_t n );
 */
 
-_PDCLIB_END_EXTERN_C
+#ifdef __cplusplus
+}
+#endif
+
 #endif