54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
/*
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* Copyright (c) 2011, 2012 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* string.cpp
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* Useful functions for manipulating strings that don't belong in libc.
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*/
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#include <stdarg.h>
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#include <string.h>
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#include <sortix/kernel/kernel.h>
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#include <sortix/kernel/string.h>
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namespace Sortix {
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namespace String {
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bool StartsWith(const char* haystack, const char* needle)
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{
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return strncmp(haystack, needle, strlen(needle)) == 0;
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}
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char* Clone(const char* Input)
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{
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size_t InputSize = strlen(Input);
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char* Result = new char[InputSize + 1];
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if ( Result == NULL ) { return NULL; }
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memcpy(Result, Input, InputSize + 1);
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return Result;
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}
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char* Substring(const char* src, size_t offset, size_t length)
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{
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char* dest = new char[length + 1];
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if ( !dest ) { return NULL; }
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memcpy(dest, src + offset, length * sizeof(char));
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dest[length] = 0;
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return dest;
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}
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} // namespace String
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} // namespace Sortix
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