catch2/include/internal/catch_tostring.hpp

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/*
* Created by Phil on 23/4/2014.
* Copyright 2014 Two Blue Cubes Ltd. All rights reserved.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#ifndef TWOBLUECUBES_CATCH_TOSTRING_HPP_INCLUDED
#define TWOBLUECUBES_CATCH_TOSTRING_HPP_INCLUDED
#include "catch_tostring.h"
#include "catch_interfaces_config.h"
namespace Catch {
namespace Detail {
const std::string unprintableString = "{?}";
namespace {
const int hexThreshold = 255;
struct Endianness {
enum Arch { Big, Little };
static Arch which() {
union _{
int asInt;
char asChar[sizeof (int)];
} u;
u.asInt = 1;
return ( u.asChar[sizeof(int)-1] == 1 ) ? Big : Little;
}
};
}
std::string rawMemoryToString( const void *object, std::size_t size )
{
// Reverse order for little endian architectures
int i = 0, end = static_cast<int>( size ), inc = 1;
if( Endianness::which() == Endianness::Little ) {
i = end-1;
end = inc = -1;
}
unsigned char const *bytes = static_cast<unsigned char const *>(object);
std::ostringstream os;
os << "0x" << std::setfill('0') << std::hex;
for( ; i != end; i += inc )
os << std::setw(2) << static_cast<unsigned>(bytes[i]);
return os.str();
}
}
std::string toString( std::string const& value ) {
std::string s = value;
if( getCurrentContext().getConfig()->showInvisibles() ) {
for(size_t i = 0; i < s.size(); ++i ) {
std::string subs;
switch( s[i] ) {
case '\n': subs = "\\n"; break;
case '\t': subs = "\\t"; break;
default: break;
}
if( !subs.empty() ) {
s = s.substr( 0, i ) + subs + s.substr( i+1 );
++i;
}
}
}
return '"' + s + '"';
}
std::string toString( std::wstring const& value ) {
std::string s;
s.reserve( value.size() );
for(size_t i = 0; i < value.size(); ++i )
s += value[i] <= 0xff ? static_cast<char>( value[i] ) : '?';
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return Catch::toString( s );
}
std::string toString( const char* const value ) {
return value ? Catch::toString( std::string( value ) ) : std::string( "{null string}" );
}
std::string toString( char* const value ) {
return Catch::toString( static_cast<const char*>( value ) );
}
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std::string toString( const wchar_t* const value )
{
return value ? Catch::toString( std::wstring(value) ) : std::string( "{null string}" );
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}
std::string toString( wchar_t* const value )
{
return Catch::toString( static_cast<const wchar_t*>( value ) );
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}
std::string toString( int value ) {
std::ostringstream oss;
oss << value;
if( value > Detail::hexThreshold )
oss << " (0x" << std::hex << value << ')';
return oss.str();
}
std::string toString( unsigned long value ) {
std::ostringstream oss;
oss << value;
if( value > Detail::hexThreshold )
oss << " (0x" << std::hex << value << ')';
return oss.str();
}
std::string toString( unsigned int value ) {
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return Catch::toString( static_cast<unsigned long>( value ) );
}
template<typename T>
std::string fpToString( T value, int precision ) {
std::ostringstream oss;
oss << std::setprecision( precision )
<< std::fixed
<< value;
std::string d = oss.str();
std::size_t i = d.find_last_not_of( '0' );
if( i != std::string::npos && i != d.size()-1 ) {
if( d[i] == '.' )
i++;
d = d.substr( 0, i+1 );
}
return d;
}
std::string toString( const double value ) {
return fpToString( value, 10 );
}
std::string toString( const float value ) {
return fpToString( value, 5 ) + 'f';
}
std::string toString( bool value ) {
return value ? "true" : "false";
}
std::string toString( char value ) {
if ( value == '\r' )
return "'\\r'";
if ( value == '\f' )
return "'\\f'";
if ( value == '\n' )
return "'\\n'";
if ( value == '\t' )
return "'\\t'";
if ( '\0' <= value && value < ' ' )
return toString( static_cast<unsigned int>( value ) );
char chstr[] = "' '";
chstr[1] = value;
return chstr;
}
std::string toString( signed char value ) {
return toString( static_cast<char>( value ) );
}
std::string toString( unsigned char value ) {
return toString( static_cast<char>( value ) );
}
#ifdef CATCH_CONFIG_CPP11_LONG_LONG
std::string toString( long long value ) {
std::ostringstream oss;
oss << value;
if( value > Detail::hexThreshold )
oss << " (0x" << std::hex << value << ')';
return oss.str();
}
std::string toString( unsigned long long value ) {
std::ostringstream oss;
oss << value;
if( value > Detail::hexThreshold )
oss << " (0x" << std::hex << value << ')';
return oss.str();
}
#endif
#ifdef CATCH_CONFIG_CPP11_NULLPTR
std::string toString( std::nullptr_t ) {
return "nullptr";
}
#endif
#ifdef __OBJC__
std::string toString( NSString const * const& nsstring ) {
if( !nsstring )
return "nil";
return "@" + toString([nsstring UTF8String]);
}
std::string toString( NSString * CATCH_ARC_STRONG & nsstring ) {
if( !nsstring )
return "nil";
return "@" + toString([nsstring UTF8String]);
}
std::string toString( NSObject* const& nsObject ) {
return toString( [nsObject description] );
}
#endif
} // end namespace Catch
#endif // TWOBLUECUBES_CATCH_TOSTRING_HPP_INCLUDED