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Regex's Range changed from class to struct. This change reduces unnecessary memory allocation

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This commit is contained in:
Masahiro Nakagawa 2010-11-13 21:02:24 +00:00
parent b18edad5eb
commit c7d4be3fbc
1 changed files with 4 additions and 4 deletions
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8
std/regex.d
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@ -387,7 +387,7 @@ Returns the number of parenthesized captures
case REgoto:
{
auto bitbuf = new OutBuffer;
auto r = new Range(bitbuf);
auto r = Range(bitbuf);
size_t offset = i;
if (starrchars(r, prog[i .. prog.length]))
{
@ -755,7 +755,7 @@ Returns the number of parenthesized captures
return 1;
}
class Range
struct Range
{
uint maxc;
uint maxb;
@ -821,7 +821,7 @@ Returns the number of parenthesized captures
offset = buf.offset;
buf.write(cast(uint)0); // reserve space for length
buf.reserve(128 / 8);
auto r = new Range(buf);
auto r = Range(buf);
if (op == REnotbit)
r.setbit2(0);
switch (pattern[p])
@ -994,7 +994,7 @@ Returns the number of parenthesized captures
// Return 1 if success, 0 if we can't build a filter or if there is no
// point to one.
bool starrchars(Range r, const(ubyte)[] prog)
bool starrchars(ref Range r, const(ubyte)[] prog)
{
E c;
uint maxc;