nerdcruft/libcruft-util
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build: don't fully qualify the installation path

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This commit is contained in:
Danny Robson 2019-06-18 15:10:05 +10:00
parent 70fcf1e97d
commit c64cd2eb29
2 changed files with 16 additions and 3 deletions
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2
CMakeLists.txt
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@ -727,7 +727,7 @@ install (
FILES
"${CMAKE_CURRENT_BINARY_DIR}/libcruft.pc"
DESTINATION
"${CMAKE_INSTALL_PREFIX}/share/pkgconfig"
"share/pkgconfig"
)

17
random.hpp
View File

@ -16,6 +16,8 @@
#include <limits>
#include <type_traits>
#include <chrono>
namespace cruft::random {
///////////////////////////////////////////////////////////////////////////
@ -25,8 +27,19 @@ namespace cruft::random {
initialise (void)
{
// Approximate the state size of the generator by its size in bytes.
std::array<unsigned,sizeof (GeneratorT) / sizeof (unsigned) + 1> seed;
std::generate (seed.begin (), seed.end (), std::random_device ());
std::array<unsigned,sizeof (GeneratorT) / sizeof (unsigned) + 1 + 1> seed;
std::generate_n (
seed.begin (),
seed.size () - 1,
std::random_device ()
);
// Append the current time with the highest resolution we have
// available. This defends against instances where the implementation
// of std::random_device is actually deterministic.
seed[seed.size () - 1] = static_cast<unsigned> (
std::chrono::high_resolution_clock::now ().time_since_epoch ().count ()
);
std::seed_seq seq (seed.begin (), seed.end ());
return GeneratorT (seq);