How can i use a pragma directive in order to show warning by compiler when a variable is declared twice.. That is
class a
{
int b;
void f()
{
int b;
}
};
although it is getting compiled without warning.
3 results in 0.0033 seconds.
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Easy way to Compile old g++ 2,95.3 code with newer g++ 3.4
I have some piece of code compiled earlier with g++ 2.95.3. When I try to compile the code in new g++ version 3.4.3, the compilation fails with error
"error: invalid in-class initialization of static data member of non-integral type `const char* const'".
I recognize the problem. I have header files with variables initialized inside the class definition. When I move the variable initialization to class constructor, it compiles... -
sizeof(struct) giving unexpected sizes. Memory alignment issues?
I noticed some quirks with C++ (not sure if this is the same for C).
I have:
sizeof(C) produces 32, which is mind boggling. Is the C++ compiler trying to align it to the memory structure? This is god awful for doing things...Code:struct A { char a[14]; }; struct B { char b[16]; }; struct C { struct A a; struct B b; };
