Multiplication with a float and a string? [Homework]

[Autry Marshall]

This is my first post on the forums, so I must apologize if this goes against what the forum is for.

In my C++ course for HS, the assignment is to compile a horrendous set of code, and write the error messages, then explain what you think they mean. The part is getting to me, however is, after the compiling and explaining, you are to fix the code. I have done this for the most part, except that there is a segment that I am fighting with.

Troubling segment:

 cout << float x = 5.0f * str << end;

The point of struggle is at "cout << float x....." where it attempts to multiply float 5.0 and str. Is this something trivial that I am just missing, should it not exist at all, or is there something deep to this?

[LB]

It's a nonsensical statement. It might make sense to multiply a string by an integer and thus repeat the string an integer number of times, but it doesn't make any sense to multiply a string by a floating point type.

Though, maybe the string contains a number and so you just need to convert the string to a float first. In that case it might be written as:

float x = 5.0f * your_conversion_function(str);
cout << x << endl;

[Autry Marshall]

I propose I should have included the entire "program," however all of my corrections were made and saved on /my/ desktop. Currently using an alt, so the best I have is the jumbled up mess of nonsense. But, the string is simply "Hello world!"


I apologize for you having to see this, I fixed all what I immediately remember;

#include <iostream>
#include <string>
using namespace std;

int main ( )
{
 string str = "Hello World!"

 cout << str << endl;

 cout << float x = 5.0f * str << end;

 int 65Num = 65;

 cout << "65Num = " < 65Num << endl;
}

After the "int main()" line, I touched nothing as I currently don't have the revisions I did in front of me. I am truly just thinking that the " * str " isn't supposed to be there.

[Norm Gunderson]

cout << float x =

float x = 5.0f * str

Neither of these things are legal.

[LB]

I think line 11 should just be completely removed.

[Duthomhas]

Another poorly-designed homework.

Outside of someone saying "this is what the program is supposed to do", there is no way to know what "float times string" is intended to mean.

You might simply declare the float, assign it's value and print it, then print the string after that. (You might argue to your professor that << was meant instead of *.)

Good luck!

[Autry Marshall]

Thank you all who answered! At this moment, I'm going to go with Duoas' suggestion, and will report back with either a success, a failure, or a second attempt.

[Autry Marshall]

It was a success! Using Duoas' recommendation, an A+ sits proudly on my gradebook. Thank you all contributors!