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Unified Diff: fusl/src/math/logbl.c

Issue 1573973002: Add a "fork" of musl as //fusl. (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 4 years, 11 months ago
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Index: fusl/src/math/logbl.c
diff --git a/fusl/src/math/logbl.c b/fusl/src/math/logbl.c
new file mode 100644
index 0000000000000000000000000000000000000000..962973a7b99bfffdcb2c1677a3c0b2ba5f87d357
--- /dev/null
+++ b/fusl/src/math/logbl.c
@@ -0,0 +1,16 @@
+#include <math.h>
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double logbl(long double x)
+{
+ return logb(x);
+}
+#else
+long double logbl(long double x)
+{
+ if (!isfinite(x))
+ return x * x;
+ if (x == 0)
+ return -1/(x*x);
+ return ilogbl(x);
+}
+#endif
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