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save a few allocations in from_ascii.

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25281 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
André Pönitz 2008-06-16 18:27:11 +00:00
parent c2d1b2ea82
commit 6a56be232d
1 changed files with 7 additions and 5 deletions
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12
src/support/docstring.cpp
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@ -31,9 +31,12 @@ namespace lyx {
docstring const from_ascii(char const * ascii) docstring const from_ascii(char const * ascii)
{ {
docstring s; docstring s;
for (char const * c = ascii; *c; ++c) { int n = strlen(ascii);
LASSERT(static_cast<unsigned char>(*c) < 0x80, /**/); s.resize(n);
s.push_back(*c); char_type *d = &s[0];
while (--n >= 0) {
d[n] = ascii[n];
LASSERT(static_cast<unsigned char>(ascii[n]) < 0x80, /**/);
} }
return s; return s;
} }
@ -99,8 +102,7 @@ docstring const from_utf8(string const & utf8)
string const to_utf8(docstring const & ucs4) string const to_utf8(docstring const & ucs4)
{ {
vector<char> const utf8 = vector<char> const utf8 = ucs4_to_utf8(ucs4.data(), ucs4.size());
ucs4_to_utf8(ucs4.data(), ucs4.size());
return string(utf8.begin(), utf8.end()); return string(utf8.begin(), utf8.end());
} }