DWORD_PTR eip = fun; infodata = eip + GetOffsetPBYTEeip; if infodata == eip return 0;

This code snippet declares a variable "eip" of type DWORD_PTR and initializes it with the return value of a function "fun()".

The next line sets a member variable "data" of an object "info" to the value of "eip" plus the offset obtained from a function call to GetOffset(). The offset is obtained by casting the value of "eip" to a PBYTE (pointer to byte) and passing it as an argument to GetOffset().

If the value of "data" is equal to the value of "eip", the function returns 0. Otherwise, it continues with the rest of the code. The purpose of this code is not clear without more context.