long long data type

[Bob H]

I am trying to compile third party c code in Visual C++ (10 years old).

Long long data type is used extensively (thousands of times).

Example: PrintLongInteger(void *,char *,long long);

I get this error message: 'long' followed by 'long' is illegal

What is the best way to solve this problem?

[Bob H]

I tried:

#define long long __int64

and

typedef __int64 long long

Both produce compiler errors.

Is there a way to replace "long long" with "__int64" in the code without resorting to brute force manual editing?

BTW, I am using Visual C++ 6.0

[VictorN]

How about using LARGE_INTEGER or int64?

[VictorN]

Is there a way to replace "long long" with "__int64" in the code without resorting to brute force manual editing?

Did you try Menu -> Edit -> Replace...?

[OReubens]

'long long' is a new style construct that isn't recognised by VC6.

So no this code won't compile in VC6, and there's nothing to do other than actual replacing (either manually or with an automated 'find and replace') or swap to a more modern compiler.

You can't #define this out since defined names can't have spaces.

So... either use a newer compiler that supports the syntax. Or edit (replace) the actual code.

[Bob H]

Thanks, I did the manual replace. With some other related changes, I got it to compile.

[itsmeandnobodyelse]

I tried:

#define long long __int64

and

typedef __int64 long long

Both produce compiler errors.

Is there a way to replace "long long" with "__int64" in the code without resorting to brute force manual editing?

BTW, I am using Visual C++ 6.0

In order to have only one portable source code you might have a global header like

// portable.h
#ifndef PORTABLE_H
#define PORTABLE_H

// check if MSVC compiler
#ifdef _MSC_VER
#define LongLong __int64
#else
#define LongLong long long
#endif

Then use LongLong everywhere instead of non-portable type.