Why does it matter what compiler & IDE I choose?

Question

The lessons use Code Blocks and GNU GCC. I'm sure having a uniform choice helps with the learning process but I'd like to know a little more why this matters.

Answer 1

It doesn't matter witch IDE you use but it must support the language you learn , The course only search for a good,open source,free IDE

Answer 2

Some compilers support different feature than others. For example gcc compiler is used for using __attribute__() on structs.
Also, depending on the compiler, it may assume there is a std library available or not.
But this stuff is usually just for specific program needs so for general use I wouldn't bother too much.
IDE is just personal choice