'Size was not declared in this scope' C++ Part 2, Arrays, 4*

[TomDeBarra]

Hi, I am entering the exact same code as in the video and it keeps giving me this error.

I am using MinGW to compile the code - Everything is fine except for whenever I try to use ‘size’ - this always causes the error shown in the screenshots.

[TomDeBarra]

I managed to work around the issue by doing an end first thingy. Thanks to everyone who took the time to read the post.

[POMPOMBALLS]

Here, check this answer:

#include query for SIZE

Ok I found the video. I think std::size() would not work for those arrays. You can use int second[sizeof(first) / sizeof(first[0])]; This would assign the same size to the second array. No extra header files are needed. If it is a different size() implementation, then mention the video so that I can look up for it. I checked that the implementation is correct. Check compiler version of Code::Blocks. It should be C++17 or higher. If the version is C++17 and it is still not working, then …