57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Copyright 2011 Danny Robson <danny@nerdcruft.net>
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*/
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#include "string.hpp"
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#include <cstring>
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#include "cast.hpp"
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// TODO: Horribly inefficient, but God help you if you're relying on this
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// being efficient in the first place.
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bool
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strbegins (const char *restrict str,
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const char *restrict prefix) {
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return 0 == strncmp (prefix, str, strlen (prefix));
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}
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#if !defined(HAVE_STRNDUP)
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#include <cstdlib>
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// Written by Niels Möller <nisse@lysator.liu.se>
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// Placed in the public domain
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char *
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strndup (const char *restrict s, size_t size)
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{
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char *end = static_cast<char *> (memchr (s, 0, size));
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if (end)
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// Length + 1
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size = sign_cast<size_t> (end - s) + 1u;
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char * r = static_cast<char *> (malloc (size));
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if (size) {
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memcpy (r, s, size-1);
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r[size-1] = '\0';
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}
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return r;
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}
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#endif
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