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Emil_halim
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Posts: 639
Topics: 104

Location:
Alex, Egypt		[983] uncompleted parameter - posted: 2011-12-09 17:44:17

i was playing with some code and needed to use wsprintf function , found it commented in
user32.zir file header , declared like this
Code:
function  wsprintfA(pointer output; pointer format): int32; cdecl;


then i want to call it with more than 2 parameters , ziron did not allow that, so i made this
macro to call it with any numbers of arguments
Code:
inline function wsprintf(;) 
{
  $i = $argc;  
  $to = $argc - 2;
  $repeat $to:  
     push $arg[$i];
     $i--;
  $end;
  wsprintfA($arg[0], $arg[1]);
  // Correct the stack 'cdecl'
  $arg =  $to * 4;
  Esp += $arg;
  $return eax;
}


so it would be better if ziron allow uncompleted parameters.

another workaround is telling zrion to did not check for the amount of parameters just
push all arguments and call the function.

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Location:
OverHertz Studio		[987] - posted: 2011-12-09 21:42:26
i have implemented this, but for now it is only accepted for imported functions, i will add support for internal functions for next release if i get time...

Code:
  function wsprintf = wsprintfA(char* output; char* format[]): Int32; cdecl;


sample:

Code:
char myBuf[512];

wsprintf(@myBuf, '%i + %i = %i', 1, 1, 2);

print('mybuf = ', @myBuf, '\r\n');


output:
Code:
1 + 1 = 2


i've updated the beta
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Emil_halim
Ziron Beta Tester

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Posts: 639
Topics: 104

Location:
Alex, Egypt		[989] - posted: 2011-12-09 21:46:36

very nice , thank you Mr. Colin.
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