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-rw-r--r--src/lib/util/coretmpl.h12
1 files changed, 3 insertions, 9 deletions
diff --git a/src/lib/util/coretmpl.h b/src/lib/util/coretmpl.h
index a06c4fb8a46..e2e221e7374 100644
--- a/src/lib/util/coretmpl.h
+++ b/src/lib/util/coretmpl.h
@@ -25,6 +25,7 @@
#include <list>
#include <map>
#include <memory>
+#include <numeric>
#include <set>
#include <stdexcept>
#include <tuple>
@@ -1050,18 +1051,11 @@ constexpr std::enable_if_t<std::is_signed<T>::value, T> iabs(T v) noexcept
}
-// returns greatest common divisor of a and b using the Euclidean algorithm
-template <typename M, typename N>
-constexpr std::common_type_t<M, N> euclid_gcd(M a, N b)
-{
- return b ? euclid_gcd(b, a % b) : a;
-}
-
// reduce a fraction
template <typename M, typename N>
inline void reduce_fraction(M &num, N &den)
{
- auto const div(euclid_gcd(num, den));
+ auto const div(std::gcd(num, den));
if (div)
{
num /= div;
@@ -1069,6 +1063,6 @@ inline void reduce_fraction(M &num, N &den)
}
}
-}; // namespace util
+} // namespace util
#endif // MAME_UTIL_CORETMPL_H