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add speed comparison

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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@375 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
syntheticpp 2005-11-29 14:20:23 +00:00
parent 7eb9f2e6ae
commit 6b5d0e2629
1 changed files with 125 additions and 112 deletions
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237
test/SafeFormat/main.cpp
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@ -14,6 +14,8 @@
#include <cassert> #include <cassert>
#include <utility> #include <utility>
#include "../SmallObj/timer.h"
using namespace std; using namespace std;
template <class Integral1, class Integral2> template <class Integral1, class Integral2>
@ -58,7 +60,7 @@ void TestCase(const string& fmt, T value)
char buf[4096]; char buf[4096];
std::string s; std::string s;
const int i1 = SPrintf(s, fmt.c_str())(value); const int i1 = SPrintf(s, fmt.c_str())(value);
#ifdef _MSC_VER #ifdef _MSC_VER
const int i2 = _snprintf(buf, sizeof(buf), fmt.c_str(), value); const int i2 = _snprintf(buf, sizeof(buf), fmt.c_str(), value);
#else #else
@ -90,124 +92,135 @@ void TestCase2(const string& fmt, T value, U value2)
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
if (argc == 3) if (argc == 2)
{ {
// test speed // test speed
int i = atoi(argv[2]);
switch (argv[1][0]) Timer t;
{
case 'p': int loop = atoi(argv[1]);
for (; i > 0; --i)
{ if(loop < 100)
printf("Hey, %u frobnicators and %u twiddlicators\n", loop = 100;
i, i);
} t.start();
break; for (int i=loop; i > 0; --i)
case 's': printf("Hey, %u frobnicators and %u twiddlicators\n",i, i);
for (; i > 0; --i) t.stop();
{ t.t100 = t.t();
cout << "Hey, " << i << " frobnicators and " << i << int t_printf = t.t();
" twiddlicators\n";
}
break; t.start();
case 'n': for (int i=loop; i > 0; --i)
for (; i > 0; --i) Printf("Hey, %u frobnicators and %u twiddlicators\n")(i)(i);
{ t.stop();
Printf("Hey, %u frobnicators and %u twiddlicators\n") int t_Printf = t.t();
(i)(i);
}
break; t.start();
} for (int i=loop; i > 0; --i)
return 0; cout << "Hey, " << i << " frobnicators and " << i <<" twiddlicators\n";
t.stop();
int t_cout = t.t();
Printf("\n\nElapsed time for %i outputs\n\n")(loop);
t.print(t_printf,"printf : ");
t.print(t_Printf,"Printf : ");
t.print(t_cout, "std::cout: ");
} }
else
//srand(time(0));
srand(0);
for (unsigned i = 0; ; ++i)
{ {
printf("%u\r", i); //srand(time(0));
srand(0);
printf("\nNumber of tests:\n");
for (unsigned i = 0; ; ++i)
{
printf("%u\r", i);
// Generate a random string for the head // Generate a random string for the head
string lead = RandomString(100); string lead = RandomString(100);
// This string will hold a random format specification // This string will hold a random format specification
string formatSpec(lead + "|%"); string formatSpec(lead + "|%");
// Generate a random set of flags // Generate a random set of flags
static const string flags("-+0 #"); static const string flags("-+0 #");
unsigned int maxFlags = RandomInt(0u, flags.length() - 1); unsigned int maxFlags = RandomInt(0u, flags.length() - 1);
for (unsigned int i = 0; i != maxFlags; ++i) for (unsigned int i = 0; i != maxFlags; ++i)
{
formatSpec += flags[RandomInt(0u, flags.length() - 1)];
}
// Generate an optional random width
if (RandomInt(0, 1))
{
const unsigned int width = RandomInt(0, 100);
char buf[4];
sprintf(buf, "%u", width);
formatSpec += buf;
}
// Generate an optional random precision
if (RandomInt(0, 1))
{
const unsigned int prec = RandomInt(0, 100);
char buf[4];
sprintf(buf, "%u", prec);
formatSpec += '.';
formatSpec += buf;
}
// Generate a random type character
/* disable %p tests
static const string type("cdeEfgGinopsuxX");*/
static const string type("cdeEfgGinosuxX");
const char typeSpec = type[RandomInt(0, type.size() - 1)];
// Generate an optional type prefix
static const string prefix("hl");
if (typeSpec != 's' && RandomInt(0, 1))
{
formatSpec += prefix[RandomInt(0, prefix.size() - 1)];
}
formatSpec += typeSpec;
formatSpec += '|';
formatSpec += RandomString(100);
switch (typeSpec)
{
case 'c':
TestCase(formatSpec, RandomInt(1, 127));
break;
case 'd':
case 'i':
case 'o':
case 'u':
case 'x':
case 'X':
TestCase(formatSpec, RandomInt(-10000, 10000));
break;
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
TestCase(formatSpec,
RandomInt(-10000, 10000) / double(RandomInt(1, 100)));
break;
case 'n':
break;
case 'p':
{ {
void * p = malloc(RandomInt(1, 1000)); formatSpec += flags[RandomInt(0u, flags.length() - 1)];
TestCase(formatSpec, p); }
free(p); // Generate an optional random width
if (RandomInt(0, 1))
{
const unsigned int width = RandomInt(0, 100);
char buf[4];
sprintf(buf, "%u", width);
formatSpec += buf;
}
// Generate an optional random precision
if (RandomInt(0, 1))
{
const unsigned int prec = RandomInt(0, 100);
char buf[4];
sprintf(buf, "%u", prec);
formatSpec += '.';
formatSpec += buf;
}
// Generate a random type character
/* disable %p tests
static const string type("cdeEfgGinopsuxX");*/
static const string type("cdeEfgGinosuxX");
const char typeSpec = type[RandomInt(0, type.size() - 1)];
// Generate an optional type prefix
static const string prefix("hl");
if (typeSpec != 's' && RandomInt(0, 1))
{
formatSpec += prefix[RandomInt(0, prefix.size() - 1)];
}
formatSpec += typeSpec;
formatSpec += '|';
formatSpec += RandomString(100);
switch (typeSpec)
{
case 'c':
TestCase(formatSpec, RandomInt(1, 127));
break;
case 'd':
case 'i':
case 'o':
case 'u':
case 'x':
case 'X':
TestCase(formatSpec, RandomInt(-10000, 10000));
break;
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
TestCase(formatSpec,
RandomInt(-10000, 10000) / double(RandomInt(1, 100)));
break;
case 'n':
break;
case 'p':
{
void * p = malloc(RandomInt(1, 1000));
TestCase(formatSpec, p);
free(p);
}
break;
case 's':
TestCase(formatSpec, RandomString(100).c_str());
break;
default:
assert(false);
break;
} }
break;
case 's':
TestCase(formatSpec, RandomString(100).c_str());
break;
default:
assert(false);
break;
} }
} }
} }