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AmiDARK
Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/7 21:56    #1
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Hi all,

all is in the title ...

Thank you.

Kindes Regards,
AmiDARK
All we have to decide is what to do with the time that is given to us.
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Shadow
Re: Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/7 22:20    #2
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@freddix

I actually had to look up what macro compilers might mean, this might be it, not sure: http://en.wikipedia.org/wiki/Macro_(computer_science)

But yes you can write macros in c/c++ using the #define preprocessor statement, a classic example:

#define safe_free(x) { \
free(x);\
 x = NULL;\
}

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AmiDARK
Re: Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/7 23:33    #3
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@Shadow
Ok

It's what I suspected but I wasn't sure ...
but is there a way to create MACROS like it was possible with DEVPAC 3 ?

Sample :
Macro MyFunction /1, /2
  /3 = Allocate Memory(/1, /2);
 EndMACRO


Will then give this for example:
MyFunction MyPointer, 2048


and compiler will change this with :
/3 = Allocate Memory( MyPointer, 2048 );


Is it possible ?
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Samurai_Crow
Re: Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/8 0:34    #4
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@freddix

C++ uses the same macro syntax as C. Your example would be done with parentheses around the passed parameters and commas separating them.

If you need to make Assembly macros you'll have to do it with Gas (the GNU Assembler used by GCC on the PPC Amiga). I'm not sure if it even has macro processing functions since it is intended primarily for use as a compiler backend.
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abalaban
Re: Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/8 9:55    #5
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@freddix

#define addition(a,b) ((a)+(b))

int main( void )
{
  int ires = addition( 1, 2);

  long lres = addition( ires, 1569 );

  double dres = addition( 15/3, 4/5 );

  return 0;
}


Should be enough, isn't it ?

Back to a quiet home... At last
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AmiDARK
Re: Are AmigaOS4 SDK compiler, MACRO compilers ?
Posted on: 2009/3/8 11:27    #6
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@abalaban
I think "Yes".
I did already understand when Samurai Crow answered :p

I used this a lot in DEVPAC and it was really useful.

Thank you both.
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