floatFormat.h

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/*
 * This file is part of sphgeom.
 *
 * Developed for the LSST Data Management System.
 * This product includes software developed by the LSST Project
 * (http://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * This software is dual licensed under the GNU General Public License and also
 * under a 3-clause BSD license. Recipients may choose which of these licenses
 * to use; please see the files gpl-3.0.txt and/or bsd_license.txt,
 * respectively.  If you choose the GPL option then the following text applies
 * (but note that there is still no warranty even if you opt for BSD instead):
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef LSST_SPHGEOM_FLOATFORMAT_H_
#define LSST_SPHGEOM_FLOATFORMAT_H_

 
#include <cstddef>
#include <string>
 
#if defined(__APPLE__)
#include <Availability.h>
#endif

#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < 130300
#define SPHGEOM_HAVE_FP_TO_CHARS 0
#else
#define SPHGEOM_HAVE_FP_TO_CHARS 1
#endif
 
namespace lsst {
namespace sphgeom {

constexpr std::size_t MAX_SHORTEST_DOUBLE_CHARS = 24;
 
namespace detail {

void appendShortestDoubleFallback(std::string & out, double value);
 
} // namespace detail

void appendShortestDouble(std::string & out, double value);
 
}} // namespace lsst::sphgeom
 
#endif // LSST_SPHGEOM_FLOATFORMAT_H_