Fasm gurus ,

I am reading up on macros in fasm and writing some nice ones myself I've read about a feature that I would like to have more information about. In the fasm documentation it says I can determine is an argument passed to a macro is a string constant by using eqtype, for instance.. if strConst eqtype "". I would like to know if I can use it with other data types so that I can do something like
if strConst eqtype dword or if strConst eqtype byte etc.

No, it distinguishes only parsing-related types of "source components". That means it can distinguish between:

• individual quoted strings (those not being a part of numerical expression),
  
• floating point numbers,
  
• any numerical expression (note that any unknown word will be treated as label, so it also will be seen as such expression),
  
• addresses - the numerical expressions in square brackets (with size operators and segment prefixes),
  
• instruction mnemonics,
  
• registers,
  
• size operators,
  
• near/far operators,
  
• use16/use32 operators
  

(I tried to provide a full list this time). When you compare any symbolic values with "eqtype" operator, they can consist of more than one of the above components - in such case "eqtype" returns true only if they contain components of the same type in exacly the same order. For example, the expression

is true, as both values consist of numerical expression and register.

Thank you Privalow, eqtype might not work the way I thought it did but you have given me some useful information that I can use. I like the fasm macro system, very powerful. Are there any other features of the macro system that the documentation does not explain?