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authorRich Felker <dalias@aerifal.cx>2019-03-12 15:24:00 -0400
committerRich Felker <dalias@aerifal.cx>2019-03-12 15:24:00 -0400
commitf368d9fd26ae002fe2fce20add4cb2b806f48972 (patch)
treefc3f6dff04f55277566a5a69c1f2acfb587855b3 /src/linux/module.c
parent50cd02386b152bb39a1a9d1edba3fdcda7771a4c (diff)
downloadmusl-f368d9fd26ae002fe2fce20add4cb2b806f48972.tar.gz
make FILE a complete type for pre-C11 standard profiles
C11 removed the requirement that FILE be a complete type, which was deemed erroneous, as part of the changes introduced by N1439 regarding completeness of types (see footnote 6 for specific mention of FILE). however the current version of POSIX is still based on C99 and incorporates the old requirement that FILE be a complete type. expose an arbitrary, useless complete type definition because the actual object used to represent FILE streams cannot be public/ABI. thanks to commit 13d1afa46f8098df290008c681816c9eb89ffbdb, we now have a framework for suppressing the public complete-type definition of FILE when stdio.h is included internally, so that a different internal definition can be provided. this is perfectly well-defined, since the same struct tag can refer to different types in different translation units. it would be a problem if the implementation were accessing the application's FILE objects or vice versa, but either would be undefined behavior.
Diffstat (limited to 'src/linux/module.c')
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