1// Copyright (C) 2003-2015 Free Software Foundation, Inc. 2// 3// This file is part of the GNU ISO C++ Library. This library is free 4// software; you can redistribute it and/or modify it under the 5// terms of the GNU General Public License as published by the 6// Free Software Foundation; either version 3, or (at your option) 7// any later version. 8 9// This library is distributed in the hope that it will be useful, 10// but WITHOUT ANY WARRANTY; without even the implied warranty of 11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12// GNU General Public License for more details. 13 14// You should have received a copy of the GNU General Public License along 15// with this library; see the file COPYING3. If not see 16// <http://www.gnu.org/licenses/>. 17 18 19#include <cstdio> 20#include <cstring> 21#include <fstream> 22#include <langinfo.h> 23#include <iconv.h> 24#include <testsuite_performance.h> 25 26// libstdc++/11602 27int main(int argc, char** argv) 28{ 29 using namespace std; 30 using namespace __gnu_test; 31 32 time_counter time; 33 resource_counter resource; 34 const int iters = 300000; 35 36 wchar_t wbuf[1024]; 37 char cbuf[1024]; 38 39 wmemset(wbuf, L'a', 1024); 40 41 // C (iconv) 42 iconv_t cd = iconv_open(nl_langinfo(CODESET), "WCHAR_T"); 43 start_counters(time, resource); 44 for (int i = 0; i < iters; ++i) 45 { 46 size_t inbytesleft = 1024 * sizeof(wchar_t); 47 size_t outbytesleft = 1024; 48 char* in = reinterpret_cast<char*>(wbuf); 49 char* out = cbuf; 50 iconv(cd, &in, &inbytesleft, &out, &outbytesleft); 51 } 52 stop_counters(time, resource); 53 iconv_close(cd); 54 report_performance(__FILE__, "C (iconv)", time, resource); 55 clear_counters(time, resource); 56 57 // C++ (codecvt) 58 locale loc; 59 const codecvt<wchar_t, char, mbstate_t>& cvt = 60 use_facet<codecvt<wchar_t, char, mbstate_t> >(loc); 61 mbstate_t state; 62 memset(&state, 0, sizeof(state)); 63 start_counters(time, resource); 64 for (int i = 0; i < iters; ++i) 65 { 66 const wchar_t* from_next; 67 char* to_next; 68 cvt.out(state, wbuf, wbuf + 1024, from_next, 69 cbuf, cbuf + 1024, to_next); 70 } 71 stop_counters(time, resource); 72 report_performance(__FILE__, "C++ (codecvt)", time, resource); 73 74 return 0; 75} 76