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| author | Jonathan Wakely <jwakely@redhat.com> | 2023-01-31 22:28:16 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2023-02-01 21:00:20 +0000 |
| commit | 277dd6ea416718ba5493023b5a4660ecdbaf936c (patch) | |
| tree | 0ffaec3b405c5629ee9165b3d62f134d51620570 /libstdc++-v3 | |
| parent | 2d2e163d12f64a5e68f9e0381751ed9d5d6d3617 (diff) | |
| download | gcc-277dd6ea416718ba5493023b5a4660ecdbaf936c.zip gcc-277dd6ea416718ba5493023b5a4660ecdbaf936c.tar.gz gcc-277dd6ea416718ba5493023b5a4660ecdbaf936c.tar.bz2 | |
libstdc++: Fix std::random_device for avr
This fixes a build failure that affects avr, but could affect other
targets in theory. The _M_fini function should not try to use ::open or
::fopen if _GLIBCXX_USE_DEV_RANDOM is not defined, because no file can
ever have been opened.
libstdc++-v3/ChangeLog:
* src/c++11/random.cc (random_device::_M_fini): Do not try to
close the file handle if the target doesn't support the
/dev/random and /dev/urandom files.
Diffstat (limited to 'libstdc++-v3')
| -rw-r--r-- | libstdc++-v3/src/c++11/random.cc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libstdc++-v3/src/c++11/random.cc b/libstdc++-v3/src/c++11/random.cc index 9872e28..ed2db4a 100644 --- a/libstdc++-v3/src/c++11/random.cc +++ b/libstdc++-v3/src/c++11/random.cc @@ -548,6 +548,7 @@ namespace std _GLIBCXX_VISIBILITY(default) } #endif +#ifdef _GLIBCXX_USE_DEV_RANDOM #ifdef USE_POSIX_FILE_IO ::close(_M_fd); _M_fd = -1; @@ -555,6 +556,7 @@ namespace std _GLIBCXX_VISIBILITY(default) std::fclose(static_cast<FILE*>(_M_file)); #endif _M_file = nullptr; +#endif } random_device::result_type |