Passing c blocks to pre processor

[Yair Lenga]

Hi,

I am trying to define macros that will accept code blocks. This will be used to create high level structures (like iterations, etc.). Ideally, I would like to do something like (this is simplified example, actual code much more application specific):

Foreach(var, low, high, block)

While should translate to:
For (int var=low ; var < high ; var ++) block 

The challnge is the gcc pre processor does not accept blocks. It assume a comma terminate a block. For example:
Foreach(foo, 1, 30, { int z=5, y=3, …}) will invoke the macro with 5 arguments: (1) foo (2) 1, (3) 30, (4) { int z=5}, (5) y=3,

Is there a way to tell CPP that an argument that start with ‘{‘ should extend until the matching ‘}’ ? Similar to the way ‘(‘ in macro arguments will extend till matching ‘)’.

Thanks, yair.


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