533 lines
10 KiB
C++
533 lines
10 KiB
C++
// Copyright (C) 2008-2013 National ICT Australia (NICTA)
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public
|
|
// License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
|
|
// -------------------------------------------------------------------
|
|
//
|
|
// Written by Conrad Sanderson - http://conradsanderson.id.au
|
|
|
|
|
|
//! \addtogroup arma_boost
|
|
//! @{
|
|
|
|
|
|
namespace arma_boost
|
|
{
|
|
|
|
#if defined(ARMA_HAVE_SNPRINTF)
|
|
|
|
#define arma_snprintf std::snprintf
|
|
|
|
#else
|
|
|
|
// better-than-nothing emulation of C99 snprintf(),
|
|
// with correct return value and null-terminated output string.
|
|
// note that _snprintf() provided by MS is not a good substitute for snprintf()
|
|
|
|
inline
|
|
int
|
|
arma_snprintf(char* out, size_t size, const char* fmt, ...)
|
|
{
|
|
size_t i;
|
|
|
|
for(i=0; i<size; ++i)
|
|
{
|
|
out[i] = fmt[i];
|
|
if(fmt[i] == char(0))
|
|
break;
|
|
}
|
|
|
|
if(size > 0)
|
|
out[size-1] = char(0);
|
|
|
|
return int(i);
|
|
}
|
|
|
|
#endif
|
|
|
|
class format
|
|
{
|
|
public:
|
|
|
|
format(const char* in_fmt)
|
|
: A(in_fmt)
|
|
{
|
|
}
|
|
|
|
format(const std::string& in_fmt)
|
|
: A(in_fmt)
|
|
{
|
|
}
|
|
|
|
|
|
const std::string A;
|
|
|
|
private:
|
|
format();
|
|
};
|
|
|
|
|
|
|
|
template<typename T1, typename T2>
|
|
class basic_format
|
|
{
|
|
public:
|
|
|
|
basic_format(const T1& in_A, const T2& in_B)
|
|
: A(in_A)
|
|
, B(in_B)
|
|
{
|
|
}
|
|
|
|
const T1& A;
|
|
const T2& B;
|
|
|
|
private:
|
|
basic_format();
|
|
};
|
|
|
|
|
|
|
|
template<typename T2>
|
|
inline
|
|
basic_format< format, T2 >
|
|
operator% (const format& X, const T2& arg)
|
|
{
|
|
return basic_format< format, T2 >(X, arg);
|
|
}
|
|
|
|
|
|
|
|
template<typename T1, typename T2, typename T3>
|
|
inline
|
|
basic_format< basic_format<T1,T2>, T3 >
|
|
operator% (const basic_format<T1,T2>& X, const T3& arg)
|
|
{
|
|
return basic_format< basic_format<T1,T2>, T3 >(X, arg);
|
|
}
|
|
|
|
|
|
|
|
template<typename T2>
|
|
inline
|
|
std::string
|
|
str(const basic_format< format, T2>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.c_str(), X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T2, typename T3>
|
|
inline
|
|
std::string
|
|
str(const basic_format< basic_format< format, T2>, T3>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.A.c_str(), X.A.B, X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T2, typename T3, typename T4>
|
|
inline
|
|
std::string
|
|
str(const basic_format< basic_format< basic_format< format, T2>, T3>, T4>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.A.A.c_str(), X.A.A.B, X.A.B, X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T2, typename T3, typename T4, typename T5>
|
|
inline
|
|
std::string
|
|
str(const basic_format< basic_format< basic_format< basic_format< format, T2>, T3>, T4>, T5>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.A.A.A.c_str(), X.A.A.A.B, X.A.A.B, X.A.B, X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T2, typename T3, typename T4, typename T5, typename T6>
|
|
inline
|
|
std::string
|
|
str(const basic_format< basic_format< basic_format< basic_format< basic_format< format, T2>, T3>, T4>, T5>, T6>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.A.A.A.A.c_str(), X.A.A.A.A.B, X.A.A.A.B, X.A.A.B, X.A.B, X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
|
|
inline
|
|
std::string
|
|
str(const basic_format< basic_format< basic_format< basic_format< basic_format< basic_format< format, T2>, T3>, T4>, T5>, T6>, T7>& X)
|
|
{
|
|
char local_buffer[1024];
|
|
char* buffer = local_buffer;
|
|
|
|
int buffer_size = 1024;
|
|
int required_size = buffer_size;
|
|
|
|
bool using_local_buffer = true;
|
|
|
|
std::string out;
|
|
|
|
do
|
|
{
|
|
if(using_local_buffer == false)
|
|
{
|
|
buffer = new char[buffer_size];
|
|
}
|
|
|
|
required_size = arma_snprintf(buffer, size_t(buffer_size), X.A.A.A.A.A.A.A.c_str(), X.A.A.A.A.A.B, X.A.A.A.A.B, X.A.A.A.B, X.A.A.B, X.A.B, X.B);
|
|
|
|
if(required_size < buffer_size)
|
|
{
|
|
if(required_size > 0)
|
|
{
|
|
out = buffer;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
buffer_size *= 2;
|
|
}
|
|
|
|
if(using_local_buffer)
|
|
{
|
|
using_local_buffer = false;
|
|
}
|
|
else
|
|
{
|
|
delete[] buffer;
|
|
}
|
|
|
|
} while( (required_size >= buffer_size) );
|
|
|
|
return out;
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
struct format_metaprog
|
|
{
|
|
static const uword depth = 0;
|
|
|
|
inline
|
|
static
|
|
const std::string&
|
|
get_fmt(const T1& X)
|
|
{
|
|
return X.A;
|
|
}
|
|
};
|
|
|
|
|
|
|
|
//template<>
|
|
template<typename T1, typename T2>
|
|
struct format_metaprog< basic_format<T1,T2> >
|
|
{
|
|
static const uword depth = 1 + format_metaprog<T1>::depth;
|
|
|
|
inline
|
|
static
|
|
const std::string&
|
|
get_fmt(const T1& X)
|
|
{
|
|
return format_metaprog<T1>::get_fmt(X.A);
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
template<typename T1, typename T2>
|
|
inline
|
|
std::string
|
|
str(const basic_format<T1,T2>& X)
|
|
{
|
|
return format_metaprog< basic_format<T1,T2> >::get_fmt(X.A);
|
|
}
|
|
|
|
|
|
|
|
template<typename T1, typename T2>
|
|
inline
|
|
std::ostream&
|
|
operator<< (std::ostream& o, const basic_format<T1,T2>& X)
|
|
{
|
|
o << str(X);
|
|
return o;
|
|
}
|
|
|
|
|
|
template<typename T> struct string_only { };
|
|
template<> struct string_only<std::string> { typedef std::string result; };
|
|
|
|
template<typename T> struct char_only { };
|
|
template<> struct char_only<char > { typedef char result; };
|
|
|
|
template<typename T>
|
|
struct basic_format_only { };
|
|
|
|
template<typename T1, typename T2>
|
|
struct basic_format_only< basic_format<T1, T2> > { typedef basic_format<T1,T2> result; };
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
static
|
|
const T1&
|
|
str_wrapper(const T1& x, const typename string_only<T1>::result* junk = 0)
|
|
{
|
|
arma_ignore(junk);
|
|
|
|
return x;
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
static
|
|
const T1*
|
|
str_wrapper(const T1* x, const typename char_only<T1>::result* junk = 0)
|
|
{
|
|
arma_ignore(junk);
|
|
|
|
return x;
|
|
}
|
|
|
|
|
|
|
|
template<typename T1>
|
|
inline
|
|
static
|
|
std::string
|
|
str_wrapper(const T1& x, const typename basic_format_only<T1>::result* junk = 0)
|
|
{
|
|
arma_ignore(junk);
|
|
|
|
return str(x);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
//! @}
|