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-rw-r--r--math/math.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/math/math.h b/math/math.h
index 5f006a8358..e21708045a 100644
--- a/math/math.h
+++ b/math/math.h
@@ -64,6 +64,9 @@ __BEGIN_DECLS
# define SNANL (__builtin_nansl (""))
# endif
#endif
+#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define SNANF128 (__builtin_nansf128 (""))
+#endif
/* Get __GLIBC_FLT_EVAL_METHOD. */
#include <bits/flt-eval-method.h>