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* [glibc] manual: Clarify return value of cbrt(3)
@ 2024-04-03 12:29 Adhemerval Zanella
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From: Adhemerval Zanella @ 2024-04-03 12:29 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e01b3b86e821e1132da76ce79ebb301033141e6d
commit e01b3b86e821e1132da76ce79ebb301033141e6d
Author: Alejandro Colomar <alx@kernel.org>
Date: Sun Mar 31 22:38:48 2024 +0200
manual: Clarify return value of cbrt(3)
Link: <https://lore.kernel.org/linux-man/ZeYKUOKYS7G90SaV@debian/T/#mff0ab388000c6afdb5e5162804d4a0073de481de>
Reported-by: Morten Welinder <mwelinder@gmail.com>
Cowritten-by: Morten Welinder <mwelinder@gmail.com>
Cc: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Cc: Vincent Lefevre <vincent@vinc17.net>
Cc: DJ Delorie <dj@redhat.com>
Cc: Paul Zimmermann <Paul.Zimmermann@inria.fr>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
Reviewed-by: DJ Delorie <dj@redhat.com>
Diff:
---
manual/math.texi | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/manual/math.texi b/manual/math.texi
index 79bf3a1401..dfb685a71e 100644
--- a/manual/math.texi
+++ b/manual/math.texi
@@ -700,8 +700,12 @@ Mathematically, it should return a complex number.
@standardsx{cbrtfN, TS 18661-3:2015, math.h}
@standardsx{cbrtfNx, TS 18661-3:2015, math.h}
@safety{@prelim{}@mtsafe{}@assafe{}@acsafe{}}
-These functions return the cube root of @var{x}. They cannot
-fail; every representable real value has a representable real cube root.
+These functions return the cube root of @var{x}.
+They cannot fail;
+every representable real value
+has a real cube root,
+and rounding it to a representable value
+never causes overflow nor underflow.
@end deftypefun
@deftypefun double hypot (double @var{x}, double @var{y})
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