If you need to know something, do a console.
If you’re a PC, do your homework.
I am a PC. I will show you I know something. And I will also show you that I know something.
.length() does a very simple thing, it returns the length of a given string. Unfortunately this is only available in C++. It’s not available in C, so you have to use a function that does return the length of a string. The C++ standard library has it. The function is std::string::length. You can find the function in the standard library header on the C++ C++ reference page here.
To use it in C, and most other languages, you have to do: int len = strlen(s);.
I’m a C++ programmer, so I’m not that well versed in the C standard library, but I would be surprised if anything related to length ever appeared in any standard C library. This is because the C standard library is only for C, not C++ and C++ is not really a language, it’s a compilation technology.
The problem with using the C standard library directly is that you need to add #include to your source file. This is because the way the standard library is implemented in C, it is actually a header-only library. You cannot create an object of type std::string without adding a header file or extending the.c file, a file that is only available on the command line.
In C++ you can declare an object with the.length() method and be done with it. In fact, you are just declared it and you can just call the.length() method on it. Also, that object is not really a string and can also be used for anything else you would want to use the string for. The only thing you really need to know is that a string is an immutable sequence of characters (which is what std::string is).
I know that.length() is not the “standard” way to use a C string, but I’ve been using it for a very long time. I use it because you can pass a pointer to an object as a parameter to a function that is expecting one. That way you can call the function without having to worry about the object actually having a length.
But this is not how you use.length. You must pass a pointer to the object as a parameter to the function. And there are many reasons why you should pass a pointer to an object. You can pass a pointer to a member function. In fact, it is often faster to use a pointer than an array.