mirror of https://code.videolan.org/videolan/dav1d
contributing: document the allowed internal use of anonymous structs/unions
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@ -12,7 +12,7 @@ The todo list can be found [on the wiki](https://code.videolan.org/videolan/dav1
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The codebase is developed with the following assumptions:
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For the library:
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- C language with C99 version, without the VLA or the Complex (*\_\_STDC_NO_COMPLEX__*) features, and without compiler extension,
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- C language with C99 version, without the VLA or the Complex (*\_\_STDC_NO_COMPLEX__*) features, and without compiler extensions. Anonymous structures and unions are the only allowed compiler extensions for internal code.
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- x86 asm in .asm files, using the NASM syntax,
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- arm/arm64 in .S files, using the GAS syntax limited to subset llvm 5.0's internal assembler supports,
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- no C++ is allowed, whatever the version.
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