added microbenchmark for wxCharBuffer performance

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55061 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/tests/benchmarks/strings.cpp b/tests/benchmarks/strings.cpp
index 5da127174cc1f5a1e71018455bbc370a2f979885..1fc1b7d38ea2167f314283a77ca2c942238b2886 100644 (file)
--- a/tests/benchmarks/strings.cpp
+++ b/tests/benchmarks/strings.cpp
@@ -226,12 +226,12 @@ BENCHMARK_FUNC(ForStringRIter)
 // wxString::Replace()
 // ----------------------------------------------------------------------------
 
 // wxString::Replace()
 // ----------------------------------------------------------------------------
 

-const size_t REPLACE_STR_LEN = strlen(asciistr);
+const size_t ASCIISTR_LEN = strlen(asciistr);

 
 BENCHMARK_FUNC(ReplaceLoop)
 {
 
 BENCHMARK_FUNC(ReplaceLoop)
 {

-    wxString str('x', REPLACE_STR_LEN);
-    for ( size_t n = 0; n < REPLACE_STR_LEN; n++ )
+    wxString str('x', ASCIISTR_LEN);
+    for ( size_t n = 0; n < ASCIISTR_LEN; n++ )

     {
         if ( str[n] == 'a' )
             str[n] = 'z';
     {
         if ( str[n] == 'a' )
             str[n] = 'z';


@@ -242,7 +242,7 @@ BENCHMARK_FUNC(ReplaceLoop)
 
 BENCHMARK_FUNC(ReplaceNone)
 {
 
 BENCHMARK_FUNC(ReplaceNone)
 {

-    wxString str('x', REPLACE_STR_LEN);
+    wxString str('x', ASCIISTR_LEN);

     return str.Replace("a", "z") == 0;
 }
 
     return str.Replace("a", "z") == 0;
 }
 


@@ -254,7 +254,22 @@ BENCHMARK_FUNC(ReplaceSome)
 
 BENCHMARK_FUNC(ReplaceAll)
 {
 
 BENCHMARK_FUNC(ReplaceAll)
 {

-    wxString str('x', REPLACE_STR_LEN);
+    wxString str('x', ASCIISTR_LEN);

     return str.Replace("x", "y") != 0;
 }
 
     return str.Replace("x", "y") != 0;
 }
 

+
+// ----------------------------------------------------------------------------
+// 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;
+}