Mark
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/** vim: set ft=cpp.doxygen :
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* @file sys/string.h
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* @brief Generic string operations
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*/
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#pragma once
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#include "sys/types.h"
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// A macro to properly read data from misaligned pointers, byte by byte
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// May be slower, but at least UBSan doesn't complain
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#define realigned(base, field) ({ \
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typeof(base->field) __v0; \
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memcpy(&__v0, (void *) (base) + offsetof(typeof(*base), field), sizeof(__v0)); \
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__v0; \
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})
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#define MAX(x, y) ((x) > (y) ? (x) : (y))
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#define MIN(x, y) ((x) < (y) ? (x) : (y))
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int atoi(const char *str);
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void *memcpy(void *restrict dst, const void *restrict src, size_t cnt);
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uint64_t *memcpyq(uint64_t *restrict dst, const uint64_t *restrict src, size_t cnt);
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void *memmove(void *dst, const void *src, size_t cnt);
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void *memset(void *dst, int v, size_t count);
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uint16_t *memsetw(uint16_t *dst, uint16_t v, size_t count);
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uint32_t *memsetl(uint32_t *dst, uint32_t v, size_t count);
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uint64_t *memsetq(uint64_t *dst, uint64_t v, size_t count);
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int memcmp(const void *a, const void *b, size_t count);
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void *memchr(const void *a, int c, size_t count);
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size_t strlen(const char *s);
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int strncmp(const char *a, const char *b, size_t lim);
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int strcmp(const char *a, const char *b);
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char *strchr(const char *a, int c);
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char *strrchr(const char *a, int c);
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char *strcpy(char *dst, const char *src);
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char *strncpy(char *dst, const char *src, size_t lim);
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char *strcat(char *dst, const char *src);
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char *strncat(char *dst, const char *src, size_t lim);
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