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core.sys.posix.dirent: Add dirfd #22750

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Merged
thewilsonator merged 4 commits into from
Mar 17, 2026
Merged

core.sys.posix.dirent: Add dirfd #22750

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52f06c3
core.sys.posix.sys.dirent: Add dirfd
dd86k Mar 17, 2026
b15616d
Remove unnecessary pragma for dirfd
dd86k Mar 17, 2026
e9e6885
Update druntime/src/core/sys/posix/dirent.d
dd86k Mar 17, 2026
c37818b
Update druntime/src/core/sys/posix/dirent.d
dd86k Mar 17, 2026
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20 changes: 20 additions & 0 deletions druntime/src/core/sys/posix/dirent.d
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Original file line number Diff line number Diff line change
Expand Up @@ -441,6 +441,26 @@ else
static assert(false, "Unsupported platform");
}

//
// POSIX.1-2008
//
/*
int dirfd(DIR*);
*/
version (NetBSD)
{
// On NetBSD, this is a macro in dirent.h, not a function.
extern (D) int dirfd()(DIR* dir) nothrow @nogc
{
// ABI guarantees dd_fd remains the first field
return *(cast(int*) dir);
}
}
else
{
nothrow @nogc int dirfd(DIR* dir);
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}

// Only OS X out of the Darwin family needs special treatment. Other Darwins
// (iOS, TVOS, WatchOS) are fine with normal symbol names for these functions
// in else below.
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