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Clarify doc for SAFE_FREE.

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Martin Pool
-
parent 8f343beae7
commit 269a7d3c9b
1 changed files with 7 additions and 3 deletions
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10
source/include/smb_macros.h
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@@ -1,6 +1,5 @@
/* /*
Unix SMB/Netbios implementation. Unix SMB/Netbios implementation.
Version 1.9.
SMB parameters and setup SMB parameters and setup
Copyright (C) Andrew Tridgell 1992-1999 Copyright (C) Andrew Tridgell 1992-1999
Copyright (C) John H Terpstra 1996-1999 Copyright (C) John H Terpstra 1996-1999
@@ -37,9 +36,14 @@
#define IS_DOS_SYSTEM(test_mode) (((test_mode) & aSYSTEM) != 0) #define IS_DOS_SYSTEM(test_mode) (((test_mode) & aSYSTEM) != 0)
#define IS_DOS_HIDDEN(test_mode) (((test_mode) & aHIDDEN) != 0) #define IS_DOS_HIDDEN(test_mode) (((test_mode) & aHIDDEN) != 0)
/* free memory if the pointer is valid and zero the pointer */
#ifndef SAFE_FREE /* Oh no this is also defined in tdb.h */ #ifndef SAFE_FREE /* Oh no this is also defined in tdb.h */
/**
* Free memory if the pointer and zero the pointer.
*
* @note You are explicitly allowed to pass NULL pointers -- they will
* always be ignored.
**/
#define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0) #define SAFE_FREE(x) do { if ((x) != NULL) {free(x); x=NULL;} } while(0)
#endif #endif