New to C

**Shindel** · 01-03-2008

I have a lab I have to do for class. The assignment is to make a loan calculator.

This is what I have

Code:

    /* Store the program in a file called intresest.c */
#include <stdio.h>
void main()
{
    /* Declare and initialize variables */
    double principal = 10000.0;
    int term = 8.0;
    double rate = 8.0;
    double simple_interest = 0.0;
        scanf(%d, &principal);
        scanf(%d, &term);
        scanf(%d, &rate);
        scanf(%d, &simple_interest);

    /* Compute the simpole inerest */
    simple_interest = (principal * term * rate) / 100.0;
    printf("Total Interest = %6.21f/n", simple_interest);
}

When I try to build it I get an error "No input files"

Is there any help I can have for this?

**Dino** · 01-03-2008

I think it would help if you posted your BUILD information. What platform / compiler?

Todd

**Shindel** · 01-03-2008

Sorry, I am using a free ware called

C-Free 3.5

Any suggestions on free programs would be greatly appreciated.

**Dino** · 01-03-2008

Is this an IDE or a console command driven compiler?

**Shindel** · 01-03-2008

I am not sure of the difference. I am new to programing and am taking it for a class in college. I do have some interest in learning but do not know very much.

**Dino** · 01-03-2008

If C-Free a GUI application or are you entering some COMPILE command via the console?

**Shindel** · 01-03-2008

It is a GUI application. I believe similar to visual studio.

**Dino** · 01-03-2008

Can you post the full output of the error information?

**Shindel** · 01-03-2008

This is the error as shown:

[Error] g++.exe: No input files

**Dino** · 01-03-2008

Doesn't look like you're supplying the input file as a parm.

**Adak** · 01-03-2008

Your doubles should be input using the %f, parameter.

Code:

Not:
scanf(%d, &simple_interest);

scanf(%f, &simple_interest);

But I don't believe that's the cause of your error, right now. Sounds like stdio.h is not where it's expecting it to be.

**Shindel** · 01-03-2008

Originally Posted by Todd Burch

Doesn't look like you're supplying the input file as a parm.

How do I do this?

**fractal** · 01-03-2008

Originally Posted by Adak

Your doubles should be input using the %f, parameter.

Code:

Not:
scanf(%d, &simple_interest);

scanf(%f, &simple_interest);

But I don't believe that's the cause of your error, right now. Sounds like stdio.h is not where it's expecting it to be.

i believe that

Code:

scanf("%lf", &simple_interest);

is better

**Dino** · 01-03-2008

Originally Posted by Shindel

How do I do this?

Beats me. Read the help.

Todd

**matsp** · 01-04-2008

Originally Posted by Shindel

This is the error as shown:

[Error] g++.exe: No input files

This is definitely that you are not supplying anything to g++ as input - the cause of this is probably that you haven't configured your project correctly - but that is a guess - as suggested, you will have to read the help for your particular IDE.

Alternatively, you could use the command prompt (start menu->run... and type in "cmd"). Then use "cd" to move to the place where your file is, and type in "gcc interest.c"

[I just noticed that this is C rather than C++, so for some reason your IDE is also assuming that you are building a C++ project rather than a C project - again, you have to choose the right configuration in your project settings].

--
Mats

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