Question

As a professional C# programmer learning C++, I would like to keep data types the same as in C#. I wrote a header file that should help with this. What I want to know is if it is correct.

// boolean
//#DEFINE bool char
//#DEFINE true 0x01
//#DEFINE false 0x00

// 8-bit integers
#DEFINE byte unsigned char
#DEFINE UInt8 unsigned char
#DEFINE Byte unsigned char
#DEFINE sbyte char
#DEFINE Int8 char
#DEFINE SByte char

// 16-bit integers
#DEFINE ushort unsigned short int
#DEFINE UInt16 unsigned short int
#DEFINE short short int
#DEFINE Int16 short int

// 32-bit integers
#DEFINE uint unsigned int
#DEFINE UInt32 unsigned int
//#DEFINE int int
#DEFINE Int32 int

// 64-bit integers
#DEFINE long long long
#DEFINE Int64 long long
#DEFINE ulong unsigned long long
#DEFINE UInt64 unsigned long long

// 32-bit floating point
//#DEFINE float float
#DEFINE Single float

// 64-bit floating point
//#DEFINE double double
#DEFINE Double double

Answer 1

Aside from the horrendous style, these macros don’t even work the way you expect.

#define long long long

is prone to all sorts of problems.

http://ideone.com/Jg9DK

Reversing the order of the macro definitions doesn’t fix the problem completely either.

http://ideone.com/45wUS

Similar problems occur with

#define short short int

http://ideone.com/dERGm