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Editorial Team
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Asked: 2026-05-31T16:50:27+00:00

We’re doing some code cleanup, fixing signed/unsigned comparisons, running static analysis, etc, on the

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We’re doing some code cleanup, fixing signed/unsigned comparisons, running static analysis, etc, on the code base of C, C++, and Java.

One of the warnings we’re getting is

warning: ISO C does not permit named variadic macros

And its companion warning

warning: ISO C99 requires rest arguments to be used

Now, in the C code I used the C99 standard variadic macro to fix the problem, but in the C++ code, what is the correct answer? Using the same C99 style results in a different warning

warning: anonymous variadic macros were introduced in C99

For which I don’t see any answers.

We’re using GCC (G++) 4.4.3 in Linux.

I’m hoping there is some flag, or other method that can correct, or disable it for the specific section of code – but its for the logging which is used in almost every file…

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1 Answer

  1. Editorial Team

    Use the gcc option -Wno-variadic-macros to disable that particular warning.

    Edit: (from comments)

    To disable the warning for a section of code but leave it on in general, use #pragma GCC diagnostic described here.

    #pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wvariadic-macros"

    // Your code and/or include files
    // (No variadic warnings here)

#pragma GCC diagnostic pop
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