mystring.h

来自「自己做的常用库和实现的数据结构。public domain.」· C头文件 代码 · 共 65 行

/* String handlers.
 *
 * Written by Cyril Hu ([e-mail]), public domain.
 */
#ifndef _MYSTRING_H_
#define _MYSTRING_H_

#include "my.h"

void 	*mymemcpy	(void *dst, const void *src, size_t n);
char 	*mystrcpy	(char *dst, const char *src);
char 	*mystrncpy	(char *dst, const char *src, size_t n);
char 	*mystrcat	(char *dst, const char *src);
char 	*mystrncat	(char *dst, const char *src, size_t n);
int   	 mystrcmp	(const char *s1, const char *s2);
int   	 mystrncmp	(const char *s1, const char *s2, size_t n);
int   	 mymemcmp	(const void *s1, const void *s2, size_t n);
void 	*mymemchr	(const void *src, int c, size_t n);
char 	*mystrchr	(const char *src, int c);
char 	*mystrrchr	(const char *src, int c);
size_t 	 mystrcspn	(const char *src, const char *sub);
char 	*mystrpbrk	(const char *src, const char *sub);
size_t	 mystrlen	(const char *src);
char	*mystrstr	(const char *src, const char *sub);
void	*mymemset	(void *src, int c, size_t n);


/* Yet another strcpy(), [begin, end] points to sequential location in ONE source. */
char *yastrcpy(char *dst, const char *begin, const char * const end);


/* Place source string in revsered order. */
char *strrev(char *src);


/* Locate the last occurence of matching substring in given source string. */
char *strrstr(const char *src, const char *sub);


/* Count how many ASCII words in given string,
 * including compound word with joint dash symbol(s). */
size_t scntwd(const char *src);

/* Count how many ASCII words in given open stream,
 * including compound word with joint dash symbol(s). */
size_t fcntwd(FILE *fp);


/* Check for identical chars in given string,
 * return true if yes, false if no or string empty. */
bool isdupchr(const unsigned char *src);


/* Substitute all matching substr(s) with replstr in given source string,
 * which is supposed to be big enough to hold all changes;
 * if replace string is empty, it means delete all matching substring(s). */
char *strsstr(char *src, const char *sub, const char *repl);


/* Format source stream into n byte wide, stream must be "rb+" or "r+b";
 * fp will be rewinded when done; returns 0 on success, -1 on failure. */
int ffmt(FILE *fp, size_t n);

#endif /* _MYSTRING_H_ */