Libft(8) - strlen

Libft(8) - strlen

 

STRLEN(3)                BSD Library Functions Manual                STRLEN(3)

NAME
     strlen, strnlen -- find length of string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

     size_t
     strlen(const char *s);

     size_t
     strnlen(const char *s, size_t maxlen);

DESCRIPTION
     The strlen() function computes the length of the string s.  The strnlen() function
     attempts to compute the length of s, but never scans beyond the first maxlen bytes of
     s.

RETURN VALUES
     The strlen() function returns the number of characters that precede the terminating
     NUL character.  The strnlen() function returns either the same result as strlen() or
     maxlen, whichever is smaller.

SEE ALSO
     string(3), wcslen(3), wcswidth(3)

STANDARDS
     The strlen() function conforms to ISO/IEC 9899:1990 (``ISO C90'').  The strnlen()
     function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').

BSD                            February 28, 2009                           BSD

• 문자열의 길이 계산하는 함수.

기본 함수 구조 및 매개변수

     #include <string.h>

     size_t
     strlen(const char *s);

• s: 길이를 구할 문자열

리턴값

• NUL 문자를 제외한 문자의 개수를 리턴.
• 순수한 문자의 개수만!

 

참고 자료

https://m.blog.naver.com/tipsware/220982995703

strlen 함수에 대하여