typedef struct _D3DVECTOR {
float x;
float y;
float z;
} D3DVECTOR;
struct D3DVECTOR {
float x;
float y;
float z;
};
typedefs
Author
How come there oftern used in places like this?
d3d9types.h, line 51
Rather than just having:
I see it alot on enums as well...
Because those headers need to remain C compatible; "typedef struct" is a C idiom in that context, it prevents you from having to write "struct" in the declaration of a variable of that type (in C).
In C, you have to prepend structure names with the struct keyword. For example:
To avoid this, C programmers often create typedefs so the struct names can be used directly. Of course using C++, we don't have that problem, but many C++ libraries are written with C interoperability in mind.
struct D3DVECTOR{ float x; float y; float z;};sturct D3DVECTOR vec;To avoid this, C programmers often create typedefs so the struct names can be used directly. Of course using C++, we don't have that problem, but many C++ libraries are written with C interoperability in mind.
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
