1 /*
2 * Copyright 2009-2019 Max Kellermann <max.kellermann@gmail.com>
3 * http://www.musicpd.org
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * - Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the
15 * distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21 * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28 * OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "NumberParser.hxx"
32 #include "StringView.hxx"
33
34 #include <algorithm>
35 #include <iterator>
36
37 int64_t
ParseInt64(StringView s,const char ** endptr_r,int base)38 ParseInt64(StringView s, const char **endptr_r, int base) noexcept
39 {
40 char buffer[32];
41 *std::copy_n(s.data, std::min(s.size, std::size(buffer) - 1),
42 buffer) = 0;
43
44 char *endptr;
45 const auto result = ParseInt64(buffer, &endptr, base);
46 if (endptr_r != nullptr)
47 *endptr_r = s.data + (endptr - buffer);
48
49 return result;
50 }
51