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Allow to pass NULL pointers to FreeStrBuf.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@5597 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2012-03-10 22:12:44 +00:00
parent d06625075d
commit e39d1e8d10
1 changed files with 11 additions and 8 deletions
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19
src/common/strbuf.c
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@ -6,10 +6,10 @@
/* */
/* */
/* */
/* (C) 2001-2008 Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* (C) 2001-2012, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
@ -115,8 +115,11 @@ StrBuf* NewStrBuf (void)
void FreeStrBuf (StrBuf* B)
/* Free a string buffer */
{
SB_Done (B);
xfree (B);
/* Allow NULL pointers */
if (B) {
SB_Done (B);
xfree (B);
}
}
@ -179,7 +182,7 @@ static void SB_CheapRealloc (StrBuf* B, unsigned NewSize)
/* Allocate a fresh block */
B->Buf = xmalloc (NewAllocated);
/* Remember the new block size */
B->Allocated = NewAllocated;
}
@ -225,7 +228,7 @@ void SB_Terminate (StrBuf* B)
void SB_CopyBuf (StrBuf* Target, const char* Buf, unsigned Size)
/* Copy Buf to Target, discarding the old contents of Target */
{
{
if (Size) {
if (Target->Allocated < Size) {
SB_CheapRealloc (Target, Size);