bfceb239c1
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@106 315a16e6-25f9-4109-90ae-ca3045a26c18
129 lines
2.4 KiB
C
129 lines
2.4 KiB
C
/*
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* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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* RWTH Aachen University
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*
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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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* This file is part of MetalSVM.
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*/
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#include <metalsvm/string.h>
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#ifndef HAVE_ARCH_MEMCPY
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void *memcpy(void *dest, const void *src, size_t count)
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{
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size_t i;
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if (BUILTIN_EXPECT(!dest || !src, 0))
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return dest;
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for (i = 0; i < count; i++)
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((char*)dest)[i] = ((char*)src)[i];
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return dest;
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}
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#endif
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#ifndef HAVE_ARCH_MEMSET
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void *memset(void *dest, int val, size_t count)
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{
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size_t i;
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if (BUILTIN_EXPECT(!dest, 0))
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return dest;
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for (i = 0; i < count; i++)
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((char*) dest)[i] = (char) val;
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return dest;
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}
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#endif
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#ifndef HAVE_ARCH_STRLEN
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size_t strlen(const char *str)
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{
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size_t len = 0;
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if (BUILTIN_EXPECT(!str, 0))
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return len;
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while (str[len] != '\0')
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len++;
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return len;
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}
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#endif
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#ifndef HAVE_ARCH_STRNCPY
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char* strncpy(char *dest, const char *src, size_t n)
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{
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size_t i;
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if (BUILTIN_EXPECT(!dest || !src, 0))
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return dest;
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for (i = 0 ; i < n && src[i] != '\0' ; i++)
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dest[i] = src[i];
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if (i < n)
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dest[i] = '\0';
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else
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dest[n-1] = '\0';
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return dest;
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}
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#endif
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#ifndef HAVE_ARCH_STRCPY
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char* strcpy(char *dest, const char *src)
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{
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size_t i;
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if (BUILTIN_EXPECT(!dest || !src, 0))
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return dest;
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for (i = 0 ; src[i] != '\0' ; i++)
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dest[i] = src[i];
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dest[i] = '\0';
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return dest;
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}
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#endif
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#ifndef HAVE_ARCH_STRCMP
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int strcmp(const char *s1, const char *s2)
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{
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while (*s1 != '\0' && *s1 == *s2) {
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s1++;
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s2++;
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}
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return (*(unsigned char *) s1) - (*(unsigned char *) s2);
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}
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#endif
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#ifndef HAVE_ARCH_STRNCMP
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int strncmp(const char *s1, const char *s2, size_t n)
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{
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if (BUILTIN_EXPECT(n == 0, 0))
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return 0;
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while (n-- != 0 && *s1 == *s2) {
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if (n == 0 || *s1 == '\0')
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break;
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s1++;
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s2++;
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}
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return (*(unsigned char *) s1) - (*(unsigned char *) s2);
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}
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#endif
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