1 files changed, 29 insertions, 0 deletions
diff --git a/sysdeps/riscv/rvf/s_isinff.c b/sysdeps/riscv/rvf/s_isinff.c
new file mode 100644
index 0000000000..1c7413190c
--- /dev/null
+++ b/sysdeps/riscv/rvf/s_isinff.c
@@ -0,0 +1,29 @@
+/* isinff().  RISC-V version.
+   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <math_private.h>
+
+int
+__isinff (float x)
+{
+  int cls = _FCLASS (x);
+  return -((cls & _FCLASS_MINF) ? 1 : 0) | ((cls & _FCLASS_PINF) ? 1 : 0);
+}
+hidden_def (__isinff)
+weak_alias (__isinff, isinff)