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/*
Author: Shane Neph & Scott Kuehn
Date: Sun Aug 19 11:39:47 PDT 2007
*/
//
// BEDOPS
// Copyright (C) 2011-2022 Shane Neph, Scott Kuehn and Alex Reynolds
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef SIMPLE_C_FORMATS_H
#define SIMPLE_C_FORMATS_H
#include <cinttypes>
#include <cstdio>
#include <type_traits>
namespace Formats {
constexpr const char* Format(const char*) { return "%s"; }
constexpr const char* Format(char) { return "%c"; }
constexpr const char* Format(double) { return "%lf"; }
constexpr const char* Format(long double) { return "%Lf"; }
constexpr const char* Format(float) { return "%f"; }
constexpr const char* Format(int) { return "%d"; }
constexpr const char* Format(unsigned int) { return "%u"; }
constexpr const char* Format(long int) { return "%ld"; }
constexpr const char* Format(long long int) { return "%lld"; } /* msft doesn't conform to this standard */
constexpr const char* Format(short) { return "%hd"; }
constexpr const char* Format(unsigned short) { return "%hu"; }
inline const char* Format(double, int precision, bool scientific) {
static char prec[20];
if ( scientific )
std::sprintf(prec, "%%.%de", precision);
else
std::sprintf(prec, "%%.%dlf", precision);
return(prec);
}
inline const char* Format(long double, int precision, bool scientific) {
static char prec[20];
if ( scientific )
std::sprintf(prec, "%%.%dLe", precision);
else
std::sprintf(prec, "%%.%dLf", precision);
return(prec);
}
namespace Details {
template <typename T, typename U>
struct check {
typedef typename std::remove_reference<typename std::remove_cv<T>::type>::type type;
static const auto value = std::is_same<type, U>::value;
static const auto not_uint64_t = !std::is_same<type, uint64_t>::value;
};
} // Details
// Overloaded functions for uint64_t and potential underlying types
template <typename T>
constexpr typename std::enable_if<Details::check<T, uint64_t>::value, char const*>::type
Format(T) { return "%" PRIu64; }
template <typename T>
constexpr typename std::enable_if<Details::check<T, unsigned long long int>::value &&
Details::check<T, unsigned long long int>::not_uint64_t, char const*>::type
Format(T) { return "%llu"; } /* msft doesn't conform to this standard */
template <typename T>
constexpr typename std::enable_if<Details::check<T, unsigned long int>::value &&
Details::check<T, unsigned long int>::not_uint64_t &&
!Details::check<T, unsigned int>::value,
char const*>::type
Format(T) { return "%lu"; }
} // namespace Formats
#endif // SIMPLE_C_FORMATS_H
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