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error: extended character ² is not valid in an identifier

Hello,

The ARM GNU toolchain does not like at all "extended characters" (like '²' or '℃') that are completely OK with other GNU toolcahins (for ARM or other architectures).

The problem lies at the C preprocessor 'cpp'...

How can that be?!

Thank you.

Top replies

Stam Markianos-Wright over 1 year ago +1 suggested

Hi there, I've managed to replicate your findings across releases: https://godbolt.org/z/4b85MW441 using `-pedantic -std=c2x` for C and ` -pedantic -std=c++23` for C++. Interestingly, C fails from GCC13...

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0 JChMathae over 1 year ago

Something to do with https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p1949r7.html ?!?
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0 JChMathae over 1 year ago

Something to do with https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p1949r7.html ?!?
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0 Andre Vieira over 1 year ago in reply to JChMathae

Hi,

I'm struggling to reproduce this. Can you post a testcase and commandline?
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