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// Copyright 2013 Antony Polukhin
// Distributed under the Boost Software License, Version 1.0.
// (See the accompanying file LICENSE_1_0.txt
// or a copy at <http://www.boost.org/LICENSE_1_0.txt>.)
#include <boost/lexical_cast.hpp>
#include <string>
#include <cstdio>
//[lexical_cast_log_errno
//`The following example uses numeric data in a string expression:
void log_message(const std::string &);
void log_errno(int yoko)
{
log_message("Error " + boost::lexical_cast<std::string>(yoko) + ": " + strerror(yoko));
}
//] [/lexical_cast_log_errno]
//[lexical_cast_fixed_buffer
//`The following example converts some number and puts it to file:
void number_to_file(int number, FILE* file)
{
typedef boost::array<char, 50> buf_t; // You can use std::array if your compiler supports it
buf_t buffer = boost::lexical_cast<buf_t>(number); // No dynamic memory allocation
std::fputs(buffer.begin(), file);
}
//] [/lexical_cast_fixed_buffer]
//[lexical_cast_substring_conversion
//`The following example takes part of the string and converts it to `int`:
int convert_strings_part(const std::string& s, std::size_t pos, std::size_t n)
{
return boost::lexical_cast<int>(s.data() + pos, n);
}
//] [/lexical_cast_substring_conversion]
void log_message(const std::string &) {}
int main()
{
return 0;
}
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