#276 preprocessor do not handle commented `ifdef properly

[Anonymous]

Hi,

Icarus Verilog appears not handling commented out `ifdef/`else/`endif properly, see examples below.

The bug still exists in the latest development verions.

$ iverilog -E test.v
test.v:7: warning: macro `endif undefined (and assumed null) at this point.

The output (a.out) incorrectly contains "*/"

// -------- file: test.v --------
`ifdef A

/*
`endif
*/

`endif

// -------- end of file: test.v --------

[Cary R.]

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This patch is for the development version, but it should be trivial to adapt it to also work with 0.8.5. The problem is/was that C style comment are not recognized/processed in a false/suppressed block. FYI new style comments (//) do work correctly.
File Added: 0001-Make-C-style-comments-work-in-false-suppressed-ifdef.patch

[Cary R.]

Patch file

[Cary R.]

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FYI this patch will also apply to the stable version with line offset warnings.

[Cary R.]

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The attached v0_8 patch will apply directly to the stable version (no warnings).
File Added: 0001-v0_8-make-C-style-comments-work-in-false-suppressed.patch

[Cary R.]

V0_8 patch file