Return the length of a string.
size_t __fastcall__ strlen (const char* s);
strlenfunction computes the number of bytes in the string to which s points, not including the terminating null byte.
- The function is only available as fastcall function, so it may only be used in presence of a prototype.
- When compiling with
-Os(inline known standard functions), the function does not work correctly for strings with more than 255 characters.
- See also