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-rw-r--r--include/ruby/win32.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/ruby/win32.h b/include/ruby/win32.h
index ca99ee48f3..a2ba226b59 100644
--- a/include/ruby/win32.h
+++ b/include/ruby/win32.h
@@ -781,7 +781,7 @@ RUBY_SYMBOL_EXPORT_END
static inline double
rb_w32_pow(double x, double y)
{
- return powl(x, y);
+ return (double)powl(x, y);
}
#elif defined(__MINGW64_VERSION_MAJOR)
double rb_w32_pow(double x, double y);