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Minor substring optimisation

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@22975 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2006-05-23 19:29:52 +00:00
parent 56e23e060e
commit 0dfcfd4814
2 changed files with 18 additions and 0 deletions
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2
ChangeLog
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@ -4,6 +4,8 @@
it needed more data even though it had actually completed.
* Source/NSException.m: Don't add stacktrace information if we are
not building with debug on.
* Source/GSString.m: Minor optimisation ... return @"" for all
substrings with a zero length range.
2006-05-22 Richard Frith-Macdonald <rfm@gnu.org>

16
Source/GSString.m
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@ -2455,6 +2455,10 @@ substring_c(GSStr self, NSRange aRange)
@defs(GSCSubString)
} *o;
if (aRange.length == 0)
{
return @"";
}
o = (typeof(o))NSAllocateObject(GSCSubStringClass,
0, NSDefaultMallocZone());
o->_contents.c = self->_contents.c + aRange.location;
@ -2473,6 +2477,10 @@ substring_u(GSStr self, NSRange aRange)
@defs(GSUnicodeSubString)
} *o;
if (aRange.length == 0)
{
return @"";
}
o = (typeof(o))NSAllocateObject(GSUnicodeSubStringClass,
0, NSDefaultMallocZone());
o->_contents.u = self->_contents.u + aRange.location;
@ -4127,6 +4135,10 @@ agree, create a new GSUnicodeInlineString otherwise.
{
GS_RANGE_CHECK(aRange, _count);
if (aRange.length == 0)
{
return @"";
}
if (_flags.wide == 1)
{
struct {
@ -4164,6 +4176,10 @@ agree, create a new GSUnicodeInlineString otherwise.
{
GS_RANGE_CHECK(aRange, _count);
if (aRange.length == 0)
{
return @"";
}
if (_flags.wide == 1)
{
struct {