From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Mon, 20 Sep 2010 12:52:21 +0000 (+0000)
Subject: Add benchmarks for various ways to compare strings.
X-Git-Url: https://git.saurik.com/wxWidgets.git/commitdiff_plain/05f68f2f84f9dcacfab853a889d7582454042412

Add benchmarks for various ways to compare strings.

Benchmark the abstraction overhead of wxString methods compared to plain
functions and also benchmark native functions for string comparison under MSW.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65571 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---

diff --git a/tests/benchmarks/strings.cpp b/tests/benchmarks/strings.cpp
index 22ab5b55a5..616e371edf 100644
--- a/tests/benchmarks/strings.cpp
+++ b/tests/benchmarks/strings.cpp
@@ -293,6 +293,114 @@ BENCHMARK_FUNC(ReplaceShorter)
     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, s) == 0;
+}
+
+BENCHMARK_FUNC(StrcmpW)
+{
+    const wxString& s = GetTestAsciiString();
+
+    return wxCRT_StrcmpW(s, s) == 0;
+}
+
+BENCHMARK_FUNC(StricmpA)
+{
+    const wxString& s = GetTestAsciiString();
+
+    return wxCRT_StricmpA(s, s) == 0;
+}
+
+BENCHMARK_FUNC(StricmpW)
+{
+    const wxString& s = GetTestAsciiString();
+
+    return wxCRT_StricmpW(s, s) == 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 __WXMSW__
+
+#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 // __WXMSW__
 
 // ----------------------------------------------------------------------------
 // string buffers: wx[W]CharBuffer