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| author | Jonathan Wakely <jwakely@redhat.com> | 2018-05-15 16:36:46 +0100 |
|---|---|---|
| committer | Jonathan Wakely <redi@gcc.gnu.org> | 2018-05-15 16:36:46 +0100 |
| commit | 5a7960da41fec497eb4203d71215bcb1077207a9 (patch) | |
| tree | 459507cfc4f9ff9bc0b70712e1db9fd0ce037432 /COPYING3 | |
| parent | c3b61fdadd7ffc9ef5c613c2df0ff4edf83ad0fc (diff) | |
| download | gcc-5a7960da41fec497eb4203d71215bcb1077207a9.zip gcc-5a7960da41fec497eb4203d71215bcb1077207a9.tar.gz gcc-5a7960da41fec497eb4203d71215bcb1077207a9.tar.bz2 | |
PR libstdc++/85749 constrain seed sequences for random number engines
Constrain constructors and member functions of random number engines so
that functions taking seed sequences can only be called with types that
meet the seed sequence requirements.
PR libstdc++/85749
* include/bits/random.h (__detail::__is_seed_seq): New SFINAE helper.
(linear_congruential_engine, mersenne_twister_engine)
(subtract_with_carry_engine, discard_block_engine)
(independent_bits_engine, shuffle_order_engine): Use __is_seed_seq to
constrain function templates taking seed sequences.
* include/bits/random.tcc (linear_congruential_engine::seed(_Sseq&))
(mersenne_twister_engine::seed(_Sseq&))
(subtract_with_carry_engine::seed(_Sseq&)): Change return types to
match declarations.
* include/ext/random (simd_fast_mersenne_twister_engine): Use
__is_seed_seq to constrain function templates taking seed sequences.
* include/ext/random.tcc (simd_fast_mersenne_twister_engine::seed):
Change return type to match declaration.
* testsuite/26_numerics/random/discard_block_engine/cons/seed_seq2.cc:
New.
* testsuite/26_numerics/random/independent_bits_engine/cons/
seed_seq2.cc: New.
* testsuite/26_numerics/random/linear_congruential_engine/cons/
seed_seq2.cc: New.
* testsuite/26_numerics/random/mersenne_twister_engine/cons/
seed_seq2.cc: New.
* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
* testsuite/26_numerics/random/shuffle_order_engine/cons/seed_seq2.cc:
New.
* testsuite/26_numerics/random/subtract_with_carry_engine/cons/
seed_seq2.cc: New.
* testsuite/ext/random/simd_fast_mersenne_twister_engine/cons/
seed_seq2.cc: New.
From-SVN: r260263
Diffstat (limited to 'COPYING3')
0 files changed, 0 insertions, 0 deletions