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| author | Jonathan Wakely <jwakely@redhat.com> | 2023-02-02 16:00:21 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2023-02-02 16:57:27 +0000 |
| commit | 5c43f06c228d169c370e99fa009154344fa305b8 (patch) | |
| tree | ab96262784a3c5c9ae5934379602f72b7e6cc0de /libstdc++-v3/src | |
| parent | 331b4f168a06cd85fe40fd03b48b128cc8af399c (diff) | |
| download | gcc-5c43f06c228d169c370e99fa009154344fa305b8.zip gcc-5c43f06c228d169c370e99fa009154344fa305b8.tar.gz gcc-5c43f06c228d169c370e99fa009154344fa305b8.tar.bz2 | |
libstdc++: Use ENOSYS for unsupported filesystem ops on AVR
Because avr-libc <errno.h> defines most error numbers with duplicate
values it's not sufficient to check #ifdef ENOTSUP when deciding which
std::errc constant to use for the filesystem library's __unsupported()
helper. Add a special case for AVR to always use the ENOSYS value.
libstdc++-v3/ChangeLog:
* src/filesystem/ops-common.h [AVR] (__unsupported): Always use
errc::function_not_supported instead of errc::not_supported.
Diffstat (limited to 'libstdc++-v3/src')
| -rw-r--r-- | libstdc++-v3/src/filesystem/ops-common.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libstdc++-v3/src/filesystem/ops-common.h b/libstdc++-v3/src/filesystem/ops-common.h index 02c75be..abbfca4 100644 --- a/libstdc++-v3/src/filesystem/ops-common.h +++ b/libstdc++-v3/src/filesystem/ops-common.h @@ -84,7 +84,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION inline error_code __unsupported() noexcept { -#if defined ENOTSUP +#if defined __AVR__ + // avr-libc defines ENOTSUP and EOPNOTSUPP but with nonsense values. + // ENOSYS is defined though, so use an error_code corresponding to that. + // This contradicts the comment above, but we don't have much choice. + return std::make_error_code(std::errc::function_not_supported); +#elif defined ENOTSUP return std::make_error_code(std::errc::not_supported); #elif defined EOPNOTSUPP // This is supposed to be for socket operations |