C字串函式庫

C字串函式庫是C語言裡負責各種字符串處理操作功能的標準函式庫，例如：複製，連接，標記化和搜索等。

包含的函數

	字元組字串	闊字串	描述
字符串 處理	strcpy	wcscpy	複製字串內容
	strncpy	wcsncpy	writes exactly n bytes/wchar_t to a string, copying from given string or adding nulls
	strcat	wcscat	appends one string to another
	strncat	wcsncat	apponds no more than n bytes/wchar_t from one string to another
	strxfrm	wcsxfrm	transforms a string according to the current locale
字符串檢查	strlen	wcslen	傳回字符串的長度
	strcmp	wcscmp	比較兩條字符串的內容
	strncmp	wcsncmp	compares a specific number of bytes/wchar_t in two strings
	strcoll	wcscoll	compares two strings according to the current locale
	strchr	wcschr	finds the first occurrence of a byte/wcahr_t in a string
	strrchr	wcsrchr	finds the last occurrence of a byte/wchar_t in a string
	strspn	wcsspn	finds in a string the first occurrence of a byte/wchar_t not in a set
	strcspn	wcscspn	finds in a string the last occurrence of a byte/wchar_t not in a set
	strpbrk	wcspbrk	finds in a string the first occurrence of a byte/wchar_t in a set
	strstr	wcsstr	finds the first occurrence of a substring in a string
	strtok	wcstok	splits string into tokens
Miscellaneous	strerror	不適用	generates and reports a string containing an error message derived from the given error code
Memory manipulation	memset	wmemset	fills a buffer with a repeated byte/wchar_t
	memcpy	wmemcpy	copies one buffer to another
	memmove	wmemmove	copies one buffer to another, possibly overlapping, buffer
	memcmp	wmemcmp	compares two buffers
	memchr	wmemchr	finds the first occurrence of a byte/wchar_t in a buffer

轉換函數

• mbtowc - converts the first multibyte character in a string to the matching wide character
• wctomb - converts a wide character to the matching multibyte character

參看

您可以在維基教科書中查找此百科条目的相關電子教程：

Strings

• C語言字串語法 for source code syntax, including backslash escape sequences.
• 字串函數
• Null-terminated string