1 files changed, 154 insertions, 0 deletions

diff --git a/src/tests/string.cpp b/src/tests/string.cpp
new file mode 100644
index 0000000..12ce8a8
--- /dev/null
+++ b/src/tests/string.cpp
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2007-2011 Xagasoft, All rights reserved.
+ *
+ * This file is part of the libbu++ library and is released under the
+ * terms of the license contained in the file LICENSE.
+ */
+
+#include "bu/hash.h"
+#include "bu/string.h"
+#include <sys/time.h>
+#include <string>
+
+#ifndef WIN32
+inline double getTime()
+{
+        struct timeval tv;
+        gettimeofday( &tv, NULL );
+        return ((double)tv.tv_sec) + ((double)tv.tv_usec/1000000.0);
+}
+#else
+#include "windows.h"
+#include "winbase.h"
+inline double getTime()
+{
+       uint32_t t = (uint32_t) GetTickCount();
+       return (double) t / 1000.0;
+}
+#endif
+
+Bu::String genThing()
+{
+        Bu::String bob;
+        bob.append("ab ");
+        bob += "cd ";
+        bob += "efg";
+
+    printf("---bob------\n%08tX: %s\n", (ptrdiff_t)bob.getStr(),
+                        bob.getStr() );
+        return bob;
+}
+
+void thing( Bu::String str )
+{
+        printf("Hey:  %s\n", str.getStr() );
+}
+
+void copyfunc( std::string temp )
+{
+        temp += "Hi";
+}
+
+void copyfunc( Bu::String temp )
+{
+        temp += "Hi";
+}
+
+void doTimings()
+{
+        Bu::String fs1, fs2;
+        std::string ss1, ss2;
+        double dStart, dEnd, tfs1, tfs2, tfs3, tss1, tss2, tss3;
+        int nChars = 500000, nChunks=5000, nCopies=5000000, nChunkSize=1024*4;
+        char *buf = new char[nChunkSize];
+        memset( buf, '!', nChunkSize );
+
+        printf("Timing Bu::String single chars...\n");
+        dStart = getTime();
+        for( int j = 0; j < nChars; j++ ) fs1 += (char)('a'+(j%26));
+        fs1.getStr();
+        dEnd = getTime();
+        tfs1 = dEnd-dStart;
+
+        printf("Timing std::string single chars...\n");
+        dStart = getTime();
+        for( int j = 0; j < nChars; j++ ) ss1 += (char)('a'+(j%26));
+        ss1.c_str();
+        dEnd = getTime();
+        tss1 = dEnd-dStart;
+
+        printf("Timing Bu::String %d char chunks...\n", nChunkSize);
+        dStart = getTime();
+        for( int j = 0; j < nChunks; j++ ) fs2.append(buf, nChunkSize);
+        fs2.getStr();
+        dEnd = getTime();
+        tfs2 = dEnd-dStart;
+
+        printf("Timing std::string %d char chunks...\n", nChunkSize);
+        dStart = getTime();
+        for( int j = 0; j < nChunks; j++ ) ss2.append(buf, nChunkSize);
+        ss2.c_str();
+        dEnd = getTime();
+        tss2 = dEnd-dStart;
+
+        fs2 = "Hello there.";
+        ss2 = "Hello there.";
+        printf("Timing Bu::String copies...\n");
+        dStart = getTime();
+        for( int j = 0; j < nCopies; j++ ) Bu::String stmp = fs2;
+        dEnd = getTime();
+        tfs3 = dEnd-dStart;
+
+        printf("Timing std::string copies...\n");
+        dStart = getTime();
+        for( int j = 0; j < nCopies; j++ ) std::string stpm = ss2;
+        dEnd = getTime();
+        tss3 = dEnd-dStart;
+
+        printf(
+                "Results:       singles:        chunks:         copies:\n"
+                "Bu::String    %10.2f/s   %10.2f/s   %10.2f/s\n"
+                "std::string    %10.2f/s   %10.2f/s   %10.2f/s\n",
+                nChars/tfs1, nChunks/tfs2, nCopies/tfs3,
+                nChars/tss1, nChunks/tss2, nCopies/tss3 );
+
+        delete[] buf;
+}
+
+#define pem printf("---------\n%08tX: %s\n%08tX: %s\n", (ptrdiff_t)str.getStr(), str.getStr(), (ptrdiff_t)str2.getStr(), str2.getStr() );
+int main( )
+{
+        Bu::String fs1;
+        for( int j = 0; j < 500000; j++ ) fs1 += (char)('a'+(j%26));
+        return 0;
+
+        Bu::String str("th");
+
+        str.prepend("Hello ");
+        str.append("ere.");
+
+        Bu::String str2( str );
+        pem;
+        str += "  What's up?";
+        pem;
+        str2 += "  How are you?";
+        pem;
+        str = str2;
+        pem;
+
+        str2 = genThing();
+        pem;
+
+        str = str2;
+        pem;
+
+        thing( str2 );
+        thing("test.");
+        
+        printf("%d == %d\n", Bu::__calcHashCode( str ), Bu::__calcHashCode( str.getStr() ) );
+
+        doTimings();
+
+        return 0;
+}
+