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38 lines
925 B
C
38 lines
925 B
C
/* SPDX-License-Identifier: MIT */
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#ifndef STRING_H
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#define STRING_H
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#include <stddef.h>
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void *memcpy(void *s1, const void *s2, size_t n);
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void *memmove(void *s1, const void *s2, size_t n);
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int memcmp(const void *s1, const void *s2, size_t n);
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void *memset(void *s, int c, size_t n);
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void *memchr(const void *s, int c, size_t n);
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char *strcpy(char *s1, const char *s2);
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char *strncpy(char *s1, const char *s2, size_t n);
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int strcmp(const char *s1, const char *s2);
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int strncmp(const char *s1, const char *s2, size_t n);
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size_t strlen(const char *s);
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size_t strnlen(const char *s, size_t n);
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char *strchr(const char *s, int c);
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char *strrchr(const char *s, int c);
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static inline int tolower(int c)
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{
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if (c >= 'A' && c <= 'Z')
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return c - 'A' + 'a';
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else
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return c;
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}
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static inline int toupper(int c)
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{
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if (c >= 'a' && c <= 'z')
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return c - 'a' + 'A';
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else
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return c;
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}
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#endif
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