diff options
Diffstat (limited to 'boost/random/linear_congruential.hpp')
-rw-r--r-- | boost/random/linear_congruential.hpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/boost/random/linear_congruential.hpp b/boost/random/linear_congruential.hpp index de3a1d0749..22ade3f3db 100644 --- a/boost/random/linear_congruential.hpp +++ b/boost/random/linear_congruential.hpp @@ -124,8 +124,12 @@ public: * distinct seeds in the range [1,m) will leave the generator in distinct * states. If c is not zero, the range is [0,m). */ - BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(linear_congruential_engine, IntType, x0) + BOOST_RANDOM_DETAIL_ARITHMETIC_SEED(linear_congruential_engine, IntType, x0_) { + // Work around a msvc 12/14 optimizer bug, which causes + // the line _x = 1 to run unconditionally sometimes. + // Creating a local copy seems to make it work. + IntType x0 = x0_; // wrap _x if it doesn't fit in the destination if(modulus == 0) { _x = x0; |