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iOS

Posted by Chris Milner
Chris Milner
Courses Plus Student 2,141 Points

Array length - online test either wrong or I'm going mad!

Hi,

Just sitting the tests on array length and pointer use in C and I've come across a problem (maybe!)

The questions (which the answer is a free text->compile answer) is:

Print the length of the array "real_numbers" using the sizeof() function. Your output should look like the following: "Array real_numbers can store x items."

My answer is:

float real_numbers[5]; printf("Array real_numbers can store %ld items.",sizeof(real_numbers)/sizeof(float));

In xcode this works fine, using the online test this is wrong. Anyone tell me why? or highlight this to the web-code people to resolve.

Thanks!

5 Answers

Chris Milner
Chris Milner
Courses Plus Student 2,141 Points

Weird. I've re-done the test including the previous task line and now it's worked fine.

Kushagra Agarwal
Kushagra Agarwal
1,713 Points
Kushagra Agarwal
Kushagra Agarwal
1,713 Points

I just tried the same and had no errors. This is the answer

float real_numbers[5];
printf("Array real_numbers is %ld bytes", sizeof(real_numbers));
printf("Array real_numbers can store %ld items", sizeof(real_numbers)/sizeof(float));

Make sure you are not replacing the 2nd line on the 3rd step!

Chris Milner
PLUS
Chris Milner
Courses Plus Student 2,141 Points
Chris Milner
Chris Milner
Courses Plus Student 2,141 Points

Hi,

Thanks for replying. I think it was because I didn't include a previous answer in my answer. The compiler obviously checks to see the full history of all previous answers per task.

I am past this section now. Thank you.

Chris

Jason Ramos
PLUS
Jason Ramos
Courses Plus Student 682 Points
Jason Ramos
Jason Ramos
Courses Plus Student 682 Points

Hi Guys,

I'm running into the same problem. I am typing it the same way as described above and I'm getting an error message. Please assist...

float real_numbers[5]; printf("Array real_numbers is %ld bytes", sizeof(real_numbers)); printf("Array can store %ld items.", sizeof(real_numbers)/sizeof(float));

Luke Monson
Luke Monson
5,909 Points
Luke Monson
Luke Monson
5,909 Points

Hello,

I had the same type of issue. I just had to restart the quiz.