mirror of https://github.com/flysand7/ciabatta.git
Implement strdup
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25db1abb6e
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14
inc/string.h
14
inc/string.h
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@ -22,6 +22,10 @@ typedef size_t rsize_t;
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#endif
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#endif
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#endif
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#endif
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#if !defined(__STDC_ALLOC_LIB__)
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#define __STDC_ALLOC_LIB__
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#endif
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// int _wcsicmp(const wchar_t *string1, const wchar_t *string2);
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// int _wcsicmp(const wchar_t *string1, const wchar_t *string2);
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void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
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void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
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@ -50,7 +54,9 @@ size_t strlen(const char *s);
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// Linux extension: reentrant strtok
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// Linux extension: reentrant strtok
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char *strtok_r(char *restrict s1, const char *restrict s2, char **restrict ctx);
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char *strtok_r(char *restrict s1, const char *restrict s2, char **restrict ctx);
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// Extension 1
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#if __STDC_WANT_LIB_EXT1__ == 1
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#if __STDC_WANT_LIB_EXT1__ == 1
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errno_t memcpy_s(void *restrict s1, rsize_t s1max, const void *restrict s2, rsize_t n);
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errno_t memcpy_s(void *restrict s1, rsize_t s1max, const void *restrict s2, rsize_t n);
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errno_t memmove_s(void *s1, rsize_t s1max, const void *s2, rsize_t n);
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errno_t memmove_s(void *s1, rsize_t s1max, const void *s2, rsize_t n);
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errno_t strcpy_s(char *restrict s1, rsize_t s1max, const char *restrict s2);
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errno_t strcpy_s(char *restrict s1, rsize_t s1max, const char *restrict s2);
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@ -62,4 +68,12 @@ errno_t memset_s(void *s, rsize_t smax, int c, rsize_t n);
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errno_t strerror_s(char *s, rsize_t maxsize, errno_t errnum);
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errno_t strerror_s(char *s, rsize_t maxsize, errno_t errnum);
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size_t strerrorlen_s(errno_t errnum);
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size_t strerrorlen_s(errno_t errnum);
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size_t strnlen_s(const char *str, size_t strsz);
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size_t strnlen_s(const char *str, size_t strsz);
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#endif
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// Extension 2
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#if __STDC_WANT_LIB_EXT2__ == 1
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char *strdup(const char *str1);
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#endif
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#endif
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@ -236,3 +236,10 @@ size_t strnlen_s(const char *s, size_t maxsize) {
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}
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}
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return i;
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return i;
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}
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}
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char *strdup(const char *str1) {
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size_t len = strlen(str1);
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char *copy = calloc(len+1, 1);
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strcpy(copy, str1);
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return copy;
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}
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