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/**
*
* Copyright 2021-2023 Ribose Inc. (https://www.ribose.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <algorithm>
#include <fstream>
#include "sexp-tests.h"
bool compare_binary_files(const std::string &filename1, const std::string &filename2)
{
bool res = false;
std::ifstream file1(filename1, std::ifstream::ate | std::ifstream::binary);
std::ifstream file2(filename2, std::ifstream::ate | std::ifstream::binary);
if (file1.tellg() == file2.tellg()) { // otherwise different file size
file1.seekg(0);
file2.seekg(0);
std::istreambuf_iterator<char> begin1(file1);
std::istreambuf_iterator<char> begin2(file2);
res = std::equal(begin1, std::istreambuf_iterator<char>(), begin2);
}
return res;
}
bool compare_binary_files(const std::string &filename1, std::istream &file2)
{
std::ifstream file1(filename1, std::ifstream::binary);
std::istreambuf_iterator<char> begin1(file1);
std::istreambuf_iterator<char> begin2(file2);
return std::equal(begin1, std::istreambuf_iterator<char>(), begin2);
}
std::istream &safe_get_line(std::istream &is, std::string &t)
{
t.clear();
// The characters in the stream are read one-by-one using a std::streambuf.
// That is faster than reading them one-by-one using the std::istream.
// Code that uses streambuf this way must be guarded by a sentry object.
// The sentry object performs various tasks,
// such as thread synchronization and updating the stream state.
std::istream::sentry se(is, true);
std::streambuf * sb = is.rdbuf();
for (;;) {
int c = sb->sbumpc();
switch (c) {
case '\n':
return is;
case '\r':
if (sb->sgetc() == '\n')
sb->sbumpc();
return is;
case std::streambuf::traits_type::eof():
// Also handle the case when the last line has no line ending
if (t.empty())
is.setstate(std::ios::eofbit);
return is;
default:
t += (char) c;
}
}
}
bool compare_text_files(const std::string &filename1, const std::string &filename2)
{
bool res = true;
std::ifstream file1(filename1, std::ifstream::binary);
std::ifstream file2(filename2, std::ifstream::binary);
std::string s1, s2;
while (res) {
if (file1.eof() && file2.eof())
break;
safe_get_line(file1, s1);
safe_get_line(file2, s2);
if (s1 != s2)
res = false;
}
return res;
}
bool compare_text_files(const std::string &filename1, std::istream &file2)
{
bool res = true;
std::ifstream file1(filename1, std::ifstream::binary);
std::string s1, s2;
file2.seekg(0);
while (res) {
if (file1.eof() && file2.eof())
break;
safe_get_line(file1, s1);
safe_get_line(file2, s2);
if (s1 != s2)
res = false;
}
return res;
}
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