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Rev 1472 Rev 1485
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    while (n--)
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    while (n--)
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        *(os++) = c;
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        *(os++) = c;
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    return s;
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    return s;
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}
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}
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void * memcpy(void *dest, void *src, size_t n)
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void * memcpy(void *dst, const void *src, size_t n)
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{
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{
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    char *os = src;
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    int i, j;
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    for (i = 0; i < n/sizeof(unsigned long); i++)
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        ((unsigned long *) dst)[i] = ((unsigned long *) src)[i];
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    for (j = 0; j < n%sizeof(unsigned long); j++)
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        ((unsigned char *)(((unsigned long *) dst) + i))[j] = ((unsigned char *)(((unsigned long *) src) + i))[j];
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    char *odst = dest;
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    return (char *)src;
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}
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void * memmove(void *dst, const void *src, size_t n)
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{
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    while (n--)
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    int i, j;
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        *(odst++) = *(os++);
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    if (src > dst)
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        return memcpy(dst, src, n);
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    for (j = (n%sizeof(unsigned long))-1; j >= 0; j--)
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        ((unsigned char *)(((unsigned long *) dst) + i))[j] = ((unsigned char *)(((unsigned long *) src) + i))[j];
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    for (i = n/sizeof(unsigned long)-1; i >=0 ; i--)
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        ((unsigned long *) dst)[i] = ((unsigned long *) src)[i];
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    return dest;
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    return (char *)src;
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}
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}
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/** Count the number of characters in the string, not including terminating 0.
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/** Count the number of characters in the string, not including terminating 0.
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 * @param str string
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 * @param str string
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 * @return number of characters in string.
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 * @return number of characters in string.
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 */
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 */
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size_t strlen(const char *str)
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size_t strlen(const char *str)