June 4, 1993 STRLEN 3

### NAME

strlen - find length of string

### LIBRARY

Standard C Library (libc, -lc)

### SYNOPSIS

```size_t` strlen(```const char *s`)

### DESCRIPTION

The strlen(``) function computes the length of the string ```s`.

### RETURN VALUES

The strlen(``) function returns the number of characters that precede the terminating ```NUL` character.

### SEE ALSO

string(3)

### STANDARDS

The strlen(``) function conforms to ANSI X3.159-1989 (``ANSI C89'') .