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Diffstat (limited to 'lib/mlibc/options/ansi/musl-generic-math/fdiml.c')
-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/fdiml.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/fdiml.c b/lib/mlibc/options/ansi/musl-generic-math/fdiml.c
new file mode 100644
index 0000000..62e29b7
--- /dev/null
+++ b/lib/mlibc/options/ansi/musl-generic-math/fdiml.c
@@ -0,0 +1,18 @@
+#include <math.h>
+#include <float.h>
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double fdiml(long double x, long double y)
+{
+ return fdim(x, y);
+}
+#else
+long double fdiml(long double x, long double y)
+{
+ if (isnan(x))
+ return x;
+ if (isnan(y))
+ return y;
+ return x > y ? x - y : 0;
+}
+#endif