wxWidgets/tests/benchmarks/strings.cpp
Vadim Zeitlin 7e3ea54f47 Add missing c_str() and similar calls to samples in STL build.
Don't rely on implicit conversion of wxString to char*/wxChar*, it doesn't
exist in STL build. Add explicit c_str(), wc_str() or t_str() calls.

Closes #14420.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71820 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2012-06-20 17:54:42 +00:00

457 lines
11 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: tests/benchmarks/strings.cpp
// Purpose: String-related benchmarks
// Author: Vadim Zeitlin
// Created: 2008-07-19
// RCS-ID: $Id$
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/string.h"
#include "wx/ffile.h"
#include "bench.h"
#include "htmlparser/htmlpars.h"
static const char asciistr[] =
"This is just the first line of a very long 7 bit ASCII string"
"This is just the second line of a very long 7 bit ASCII string"
"This is just the third line of a very long 7 bit ASCII string"
"This is just the fourth line of a very long 7 bit ASCII string"
"This is just the fifth line of a very long 7 bit ASCII string"
"This is just the sixth line of a very long 7 bit ASCII string"
"This is just the seventh line of a very long 7 bit ASCII string"
"This is just the eighth line of a very long 7 bit ASCII string"
"This is just the ninth line of a very long 7 bit ASCII string"
"This is just the tenth line of a very long 7 bit ASCII string"
;
static const char utf8str[] =
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 0"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 1"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 2"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 3"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 4"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 5"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 6"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 7"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 8"
"\xD0\xA6\xD0\xB5\xD0\xBB\xD0\xBE\xD0\xB5 \xD1\x87\xD0\xB8\xD1\x81\xD0\xBB\xD0\xBE 9"
;
namespace
{
const wxString& GetTestAsciiString()
{
static wxString testString;
if ( testString.empty() )
{
long num = Bench::GetNumericParameter();
if ( !num )
num = 1;
for ( long n = 0; n < num; n++ )
testString += wxString::FromAscii(asciistr);
}
return testString;
}
} // anonymous namespace
// this is just a baseline
BENCHMARK_FUNC(Strlen)
{
if ( strlen(utf8str) != WXSIZEOF(utf8str) - 1 )
return false;
if ( strlen(asciistr) != WXSIZEOF(asciistr) - 1 )
return false;
return true;
}
// ----------------------------------------------------------------------------
// FromUTF8() benchmarks
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(FromUTF8)
{
wxString s = wxString::FromUTF8(utf8str);
if ( s.empty() )
return false;
s = wxString::FromUTF8(asciistr);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromUTF8WithNpos)
{
wxString s = wxString::FromUTF8(utf8str, wxString::npos);
if ( s.empty() )
return false;
s = wxString::FromUTF8(asciistr, wxString::npos);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromUTF8WithLen)
{
wxString s = wxString::FromUTF8(utf8str, WXSIZEOF(utf8str));
if ( s.empty() )
return false;
s = wxString::FromUTF8(asciistr, WXSIZEOF(asciistr));
if ( s.empty() )
return false;
return true;
}
// ----------------------------------------------------------------------------
// FromUTF8Unchecked() benchmarks
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(FromUTF8Unchecked)
{
wxString s = wxString::FromUTF8Unchecked(utf8str);
if ( s.empty() )
return false;
s = wxString::FromUTF8Unchecked(asciistr);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromUTF8UncheckedWithNpos)
{
wxString s = wxString::FromUTF8Unchecked(utf8str, wxString::npos);
if ( s.empty() )
return false;
s = wxString::FromUTF8Unchecked(asciistr, wxString::npos);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromUTF8UncheckedWithLen)
{
wxString s = wxString::FromUTF8Unchecked(utf8str, WXSIZEOF(utf8str));
if ( s.empty() )
return false;
s = wxString::FromUTF8Unchecked(asciistr, WXSIZEOF(asciistr));
if ( s.empty() )
return false;
return true;
}
// ----------------------------------------------------------------------------
// FromAscii() benchmarks
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(FromAscii)
{
wxString s = wxString::FromAscii(asciistr);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromAsciiWithNpos)
{
wxString s = wxString::FromAscii(asciistr);
if ( s.empty() )
return false;
return true;
}
BENCHMARK_FUNC(FromAsciiWithLen)
{
wxString s = wxString::FromAscii(asciistr, WXSIZEOF(asciistr));
if ( s.empty() )
return false;
return true;
}
// ----------------------------------------------------------------------------
// simple string iteration
// ----------------------------------------------------------------------------
// baseline
BENCHMARK_FUNC(ForCString)
{
for ( size_t n = 0; n < WXSIZEOF(asciistr); n++ )
{
if ( asciistr[n] == '~' )
return false;
}
return true;
}
BENCHMARK_FUNC(ForStringIndex)
{
const wxString& s = GetTestAsciiString();
const size_t len = s.length();
for ( size_t n = 0; n < len; n++ )
{
if ( s[n] == '~' )
return false;
}
return true;
}
BENCHMARK_FUNC(ForStringIter)
{
const wxString& s = GetTestAsciiString();
const wxString::const_iterator end = s.end();
for ( wxString::const_iterator i = s.begin(); i != end; ++i )
{
if ( *i == '~' )
return false;
}
return true;
}
BENCHMARK_FUNC(ForStringRIter)
{
const wxString& s = GetTestAsciiString();
const wxString::const_reverse_iterator rend = s.rend();
for ( wxString::const_reverse_iterator i = s.rbegin(); i != rend; ++i )
{
if ( *i == '~' )
return false;
}
return true;
}
// ----------------------------------------------------------------------------
// wxString::Replace()
// ----------------------------------------------------------------------------
const size_t ASCIISTR_LEN = strlen(asciistr);
BENCHMARK_FUNC(ReplaceLoop)
{
wxString str('x', ASCIISTR_LEN);
for ( size_t n = 0; n < ASCIISTR_LEN; n++ )
{
if ( str[n] == 'a' )
str[n] = 'z';
}
return str.length() != 0;
}
BENCHMARK_FUNC(ReplaceNone)
{
wxString str('x', ASCIISTR_LEN);
return str.Replace("a", "z") == 0;
}
BENCHMARK_FUNC(ReplaceSome)
{
wxString str(asciistr);
return str.Replace("7", "8") != 0;
}
BENCHMARK_FUNC(ReplaceAll)
{
wxString str('x', ASCIISTR_LEN);
return str.Replace("x", "y") != 0;
}
BENCHMARK_FUNC(ReplaceLonger)
{
wxString str('x', ASCIISTR_LEN);
return str.Replace("x", "yy") != 0;
}
BENCHMARK_FUNC(ReplaceShorter)
{
wxString str('x', ASCIISTR_LEN);
return str.Replace("xx", "y") != 0;
}
// ----------------------------------------------------------------------------
// string case conversion
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(Lower)
{
return GetTestAsciiString().Lower().length() > 0;
}
BENCHMARK_FUNC(Upper)
{
return GetTestAsciiString().Upper().length() > 0;
}
// ----------------------------------------------------------------------------
// string comparison
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(StrcmpA)
{
const wxString& s = GetTestAsciiString();
return wxCRT_StrcmpA(s.c_str(), s.c_str()) == 0;
}
BENCHMARK_FUNC(StrcmpW)
{
const wxString& s = GetTestAsciiString();
return wxCRT_StrcmpW(s.wc_str(), s.wc_str()) == 0;
}
BENCHMARK_FUNC(StricmpA)
{
const wxString& s = GetTestAsciiString();
return wxCRT_StricmpA(s.c_str(), s.c_str()) == 0;
}
BENCHMARK_FUNC(StricmpW)
{
const wxString& s = GetTestAsciiString();
return wxCRT_StricmpW(s.wc_str(), s.wc_str()) == 0;
}
BENCHMARK_FUNC(StringCmp)
{
const wxString& s = GetTestAsciiString();
return s.Cmp(s) == 0;
}
BENCHMARK_FUNC(StringCmpNoCase)
{
const wxString& s = GetTestAsciiString();
return s.CmpNoCase(s) == 0;
}
// Also benchmark various native functions under MSW. Surprisingly/annoyingly
// they sometimes have vastly better performance than alternatives, especially
// for case-sensitive comparison (see #10375).
#ifdef __WINDOWS__
#include "wx/msw/wrapwin.h"
BENCHMARK_FUNC(MSWlstrcmp)
{
const wxString& s = GetTestAsciiString();
return lstrcmp(s.t_str(), s.t_str()) == 0;
}
BENCHMARK_FUNC(MSWlstrcmpi)
{
const wxString& s = GetTestAsciiString();
return lstrcmpi(s.t_str(), s.t_str()) == 0;
}
BENCHMARK_FUNC(MSWCompareString)
{
const wxString& s = GetTestAsciiString();
return ::CompareString
(
LOCALE_USER_DEFAULT,
0,
s.t_str(), s.length(),
s.t_str(), s.length()
) == CSTR_EQUAL;
}
BENCHMARK_FUNC(MSWCompareStringIgnoreCase)
{
const wxString& s = GetTestAsciiString();
return ::CompareString
(
LOCALE_USER_DEFAULT,
NORM_IGNORECASE,
s.t_str(), s.length(),
s.t_str(), s.length()
) == CSTR_EQUAL;
}
#endif // __WINDOWS__
// ----------------------------------------------------------------------------
// string buffers: wx[W]CharBuffer
// ----------------------------------------------------------------------------
BENCHMARK_FUNC(CharBuffer)
{
wxString str(asciistr);
// NB: wxStrlen() is here to simulate some use of the returned buffer.
// Both mb_str() and wc_str() are used so that this code does something
// nontrivial in any build.
return wxStrlen(str.mb_str()) == ASCIISTR_LEN &&
wxStrlen(str.wc_str()) == ASCIISTR_LEN;
}
// ----------------------------------------------------------------------------
// wxString::operator[] - parse large HTML page
// ----------------------------------------------------------------------------
class DummyParser : public wx28HtmlParser
{
public:
virtual wxObject* GetProduct() { return NULL; }
virtual void AddText(const wxChar*) {}
};
BENCHMARK_FUNC(ParseHTML)
{
// static so that construction time is not counted
static DummyParser parser;
static wxString html;
if ( html.empty() )
{
wxString html1;
wxFFile("htmltest.html").ReadAll(&html1, wxConvUTF8);
// this is going to make for some invalid HTML, of course, but it
// doesn't really matter
long num = Bench::GetNumericParameter();
if ( !num )
num = 1;
for ( long n = 0; n < num; n++ )
html += html1;
}
parser.Parse(html);
return true;
}