Difference between gcc-4.0.0-8 and gcc-4.3.2

Question

SPOJ and Codechef have both of them in list of accepted languages. What is the so big difference between them that they have to be distinguished?

Answer 1

For C++, they aren't binary compatible with each other, for one thing.

There's a lot of openmp function that arrived between 4.0 and 4.3 for another.

Answer 2

All the changes between GCC major versions are described on each versions changes page:

1. Changes in 4.1
2. Changes in 4.2
3. Changes in 4.3
4. Changes in 4.4

Answer 3

应用程序二进制接口（ABI）已更改（意味着您无法（可靠地）将来自不同版本的二进制文件链接在一起）