procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

libstdc++: Make spurious std::random_device FAIL less likely

Browse source 
It's possible that independent reads from /dev/random and /dev/urandom
could produce the same value by chance. Retry if that happens. The
chances of it happening twice are miniscule.

libstdc++-v3/ChangeLog:

	* testsuite/26_numerics/random/random_device/cons/token.cc:
	Retry if random devices produce the same value.
This commit is contained in:
Jonathan Wakely 2021-11-09 10:31:18 +00:00
parent 0318df0ae6
commit 8d2d0a6c43
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
libstdc++-v3/testsuite/26_numerics/random/random_device/cons/token.cc
View file

@ -42,7 +42,7 @@ test02()
#ifdef _GLIBCXX_USE_DEV_RANDOM
std::random_device x1("/dev/urandom");
std::random_device x2("/dev/random");
VERIFY( x1() != x2() );
VERIFY( x1() != x2() || x1() != x2() );
#endif
}