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-rw-r--r--math/bits/mathcalls.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/math/bits/mathcalls.h b/math/bits/mathcalls.h
index a3416478c0..eb40fb2b1e 100644
--- a/math/bits/mathcalls.h
+++ b/math/bits/mathcalls.h
@@ -185,6 +185,11 @@ __MATHCALL_VEC (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
__MATHCALL_VEC (cbrt,, (_Mdouble_ __x));
#endif
+#if __GLIBC_USE (IEC_60559_FUNCS_EXT_C23)
+/* Return the reciprocal of the square root of X. */
+__MATHCALL (rsqrt,, (_Mdouble_ __x));
+#endif
+
/* Nearest integer, absolute value, and remainder functions. */