58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
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#ifndef _LIBC_STRING_H
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#define _LIBC_STRING_H
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#include <stddef.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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/* Set 'nbytes' to 'fill' starting from 'dest'. */
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void* memset(void* dest, int fill, size_t nbytes);
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/* Move 'nbytes' from 'src' to 'dest' */
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void* memmove(void* dest, const void* __restrict src, size_t nbytes);
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/* Copy 'nbytes' from 'src' to 'dest'. See the comment in the source file
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about optimization and restricting pointers. */
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void* memcpy(void* __restrict dest, const void* __restrict src, size_t nbytes);
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/* Copy 'nbytes' from 'src' to 'dest', stopping if the current byte matches
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'stop'. Note that the stop byte also gets copied over. */
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void* memccpy(void* dest, const void* __restrict src, int stop, size_t nbytes);
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/* Compare 'nbytes' from 'src1' and 'src2'. Return 0 if all the bytes match,
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otherwise return the difference. */
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int memcmp(const void* src1, const void* src2, size_t nbytes);
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void* memchr(const void* ptr, int c, size_t size);
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/* Calculate the string length starting from 'str'. */
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size_t strlen(const char* str);
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/* Copy 'src' into 'dest' until it finds a null byte in the source string.
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Note that this is dangerous because it writes memory no matter the size
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the 'dest' buffer is. */
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char* strcpy(char* dest, const char* src);
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int strcmp(const char* a, const char* b);
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int strncmp(const char* a, const char* b, size_t nbytes);
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/* Copy 'src' into 'dest' until it finds a null byte or reaches the 'nbytes'
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limit provided by the user. This is the recommended way of copying strings,
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instead of using regular strcpy. Note that this will fill the 'dest' buffer
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with null bytes if the amount of copied bytes is lower than 'nbytes'. */
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char* strncpy(char* dest, const char* src, size_t nbytes);
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/* Returns a pointer to the first occurrence of character in the C string str. */
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char* strchr(const char* s, int c);
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char* strtok_r(char* str, const char* delim, char** saveptr);
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char* strtok(char* str, const char* delim);
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char* strstr(const char* haystack, const char* needle);
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char* strcat(char* dest, const char* src);
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char* strrchr(const char* str, int ch);
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__END_DECLS
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#endif // _LIBC_STRING_H
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