Libosmium: include/osmium/util/misc.hpp Source File

Libosmium Fast and flexible C++ library for working with OpenStreetMap data

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misc.hpp
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1#ifndef OSMIUM_UTIL_MISC_HPP
2#define OSMIUM_UTIL_MISC_HPP
3
4/*
5
6This file is part of Osmium (https://osmcode.org/libosmium).
7
8Copyright 2013-2026 Jochen Topf <jochen@topf.org> and others (see README).
9
10Boost Software License - Version 1.0 - August 17th, 2003
11
12Permission is hereby granted, free of charge, to any person or organization
13obtaining a copy of the software and accompanying documentation covered by
14this license (the "Software") to use, reproduce, display, distribute,
15execute, and transmit the Software, and to prepare derivative works of the
16Software, and to permit third-parties to whom the Software is furnished to
17do so, all subject to the following:
18
19The copyright notices in the Software and this entire statement, including
20the above license grant, this restriction and the following disclaimer,
21must be included in all copies of the Software, in whole or in part, and
22all derivative works of the Software, unless such copies or derivative
23works are solely in the form of machine-executable object code generated by
24a source language processor.
25
26THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32DEALINGS IN THE SOFTWARE.
33
34*/
35
36#include <cassert>
37#include <cerrno>
38#include <cstdlib>
39#include <limits>
40#include <stdexcept>
41#include <tuple>
42#include <type_traits>
43
44namespace osmium {
45
50 template <typename... Ts>
51 inline std::tuple<const Ts&...>
52 const_tie(const Ts&... args) noexcept {
53 return std::tuple<const Ts&...>(args...);
54 }
55
56 namespace detail {
57
68
69 template <typename TReturn>
70 inline TReturn str_to_int(const char* str) {
71 using r_type = std::conditional_t<std::is_unsigned<TReturn>::value, unsigned long long, long long>; // NOLINT(google-runtime-int)
72 assert(str);
73 char* end = nullptr;
74 const auto value = std::strtoll(str, &end, 10);
75 if (value < 0 || value == std::numeric_limits<long long>::max() || static_cast<r_type>(value) >= std::numeric_limits<TReturn>::max() || end == nullptr || *end != '\0') { // NOLINT(google-runtime-int)
76 return 0;
77 }
78
79 return static_cast<TReturn>(value);
80 }
81
82 } // namespace detail
83
84} // namespace osmium
85
86#endif // OSMIUM_UTIL_MISC_HPP
detail
Definition attr.hpp:342
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
osmium::const_tie
std::tuple< const Ts &... > const_tie(const Ts &... args) noexcept
Definition misc.hpp:52