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