**///Re: Abnormal prg termination

I am trying to learn C++. I have Turbo C++ 3.0 installed on a win98se machine. Whenever I try to create an arrat of floats and then scanf the values, everything works fine. But when I use an a float in a structure and then create an array of structures and try to scanf the values, I get the error msg "Abnormal program termination. floating point formats not linked". Here is the piece of code:
...
...

Code:

int n, i = 0;
	struct {
		char text[20];
		float radius;
		float area;
	} circle[10];


	printf("\nTo STOP enter END for flag\n");
	printf("Flag: ");
	scanf("%s", circle[i].text);

	while(circle[i].text[0]!='E'||circle[i].text[1]!='N'||circle[i].text[2]!='D')
	{
		printf("Radius: ");
		scanf("%f", &circle[i].radius);  //THIS WHERE THE ERROR OCCURS

to overcome i have to declare a separate float r and use this r in scanf and then transfer the value captured to the structure element.
can anyone please throw some light on this?
Thanks

I am posting this because you did not use code tags on this thread. In the furture please use Code Tags. They make your code MUCH easier to read and people will be much more likely to help you if you do. And they'll be happier about helping you

For example:

Without code tags:

for(int i=0;i<5;i++)
{
cout << "No code tags are bad";
}

With Code Tags:

Code:

for(int i=0;i<5;i++)
{
     cout << "This code is easy to read";
}

This is of course a basic example...more complicated code is even easier to read with code tags than without.

I've added code tags for you this time. They can be added by putting [code] at the beginning of your code and [/code] at the end. More information on code tags may be found on the code tag post at the top of every forum. I also suggest you take a look at the board guildlines if you have not done so already.

This is a common first post mistake, just remember to use [code] tags in the future and you'll get much more help.

If this is your first time posting here the welcome, and if there's anything I can do or any questions I can answer about these forums, or anything else, please feel free and welcome to PM me.


Good Luck with your program,

Kermi3
Lead Moderator

It has to do with operator precedence. Instead of

Code:

scanf("%f", &circle[i].radius);

Enclose the circle[i].radius in parens and then get the address of that ie:

Code:

scanf("%f", &(circle[i].radius));

-Futura

>It has to do with operator precedence.
No it doesn't. Both [] and . have higher precedence than &, so no parentheses are needed. The original call was correct. The problem is a compiler bug in Turbo C++ 3.0.

>"Abnormal program termination. floating point formats not linked"
http://www.stratoware.com/msdos/dos-faq.html#Q0304

-Prelude

Thanks a lot. The link u provided did help. Now after the extern stmts, the program is working fine without any errors.
thanks a lot pal.

>It has to do with operator precedence.
No it doesn't. Both [] and . have higher precedence than &, so no parentheses are needed. The original call was correct. The problem is a compiler bug in Turbo C++ 3.0.

Thanks for correcting me Prelude, I'll be more conscientious and not misrepresent a guess as a fact. *embarrassed smile*

-Futura