73ef4ff3
 Hu Chunming
提交三方库
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// timex: timed execution program ------------------------------------------//
// Copyright Beman Dawes 2007
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
// See http://www.boost.org/libs/timer for documentation.
#include <boost/timer/timer.hpp>
#include <cstdlib>
#include <string>
#include <iostream>
int main( int argc, char * argv[] )
{
if ( argc == 1 )
{
std::cout << "invoke: timex [-v] command [args...]\n"
" command will be executed and timings displayed\n"
" -v option causes command and args to be displayed\n";
return 1;
}
std::string s;
bool verbose = false;
if ( argc > 1 && *argv[1] == '-' && *(argv[1]+1) == 'v' )
{
verbose = true;
++argv;
--argc;
}
for ( int i = 1; i < argc; ++i )
{
if ( i > 1 ) s += ' ';
s += argv[i];
}
if ( verbose )
{ std::cout << "command: \"" << s.c_str() << "\"\n"; }
boost::timer::auto_cpu_timer t(" %ws elapsed wall-clock time\n");
return std::system( s.c_str() );
}
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