Hey guys, thank for the help before and maybe you can help me a little more :-).
Here is the question they are asking...
"Write a statement that reads a floating point (real) value from standard input into temperature. Assume that temperature. has already been declared as an double variable."
I been trying to figure out what it means. I tried scanf, but just get some error message. Any help would be great. Thanks.
Oh btw this isn't a homework question. I been using this site to help me learn C++ the site is turingscraft.
12 9836 horace1 1,510
Recognized Expert Top Contributor
Hey guys, thank for the help before and maybe you can help me a little more :-).
Here is the question they are asking...
"Write a statement that reads a floating point (real) value from standard input into temperature. Assume that temperature. has already been declared as an double variable."
I been trying to figure out what it means. I tried scanf, but just get some error message. Any help would be great. Thanks.
post your code an we can try to figure out what is wrong
post your code an we can try to figure out what is wrong
Well, I tried these.. -
-
printf("%f",temperature);
-
-
and I tried
-
-
scanf("%f",temperature);
-
-
and I even messed around and gave temperature a value of 10.
-
I just don't really understand what they are asking for exactly. I hope that helps...
horace1 1,510
Recognized Expert Top Contributor
Well, I tried these.. -
-
printf("%f",temperature);
-
-
and I tried
-
-
scanf("%f",temperature);
-
-
and I even messed around and gave temperature a value of 10.
-
I just don't really understand what they are asking for exactly. I hope that helps...
when scanf() converts characters into a numeric value it has to return that value into the variable. To do this it need the address in memory of the variable. To pass the address you use the & (address of operator), e.g. -
scanf("%f",&temperature); // ** & added
-
when scanf() converts characters into a numeric value it has to return that value into the variable. To do this it need the address in memory of the variable. To pass the address you use the & (address of operator), e.g. -
scanf("%f",&temperature); // ** & added
-
Hello, I also had tried the & and I believe I got the error "Suggestion : You changed temperature, but did not read a value into it."
So would I have to put something like temperature = 10 is that "reading a value into it."
horace1 1,510
Recognized Expert Top Contributor
Hello, I also had tried the & and I believe I got the error "Suggestion : You changed temperature, but did not read a value into it."
So would I have to put something like temperature = 10 is that "reading a value into it."
try this program which reads a value from the keyboard and returns it into the variable temperature -
#include <stdio.h>
-
-
int main()
-
{
-
float temperature;
-
scanf("%f",&temperature); // ** & added
-
printf("%f\n",temperature);
-
system("pause");
-
}
-
try this program which reads a value from the keyboard and returns it into the variable temperature -
#include <stdio.h>
-
-
int main()
-
{
-
float temperature;
-
scanf("%f",&temperature); // ** & added
-
printf("%f\n",temperature);
-
system("pause");
-
}
-
Hello, that works in my c++ program, but not for the website. I have to put
[code]
scanf("%f",&tem perature);
printf("%f\n",t emperature);
[code\]
You changed temperature, but did not read a value into it.
Unexpected identifiers: printf
Write a single statement, performing the input as directed.
The site asks
Write a statement that reads a floating point (real) value from standard input into temperature. Assume that temperature. has already been declared as an double variable.
I know scanf and printf does what the first line asks for, but could've the site have a grammar error or temperature. <<notice the period must be included in the code?
I'm sorry if this is confusing as I am confused as well.
horace1 1,510
Recognized Expert Top Contributor
what exactly are you trying do, i.e. what is the specification of the program? what website are you talking about?
what exactly are you trying do, i.e. what is the specification of the program? what website are you talking about?
Hello, the website I am using is www.turingscraf t.com
You have some sort of instant message program I can send you my print screen of or I'll just find a website to host it.
Thanks again!
After a few hours of research, I figured out the correct code: - scanf("%lf",&temperature);
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