Re: Proposal: Trigonometric functions in degrees

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Noah Misch <noah(at)leadboat(dot)com>
Cc: Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Proposal: Trigonometric functions in degrees
Date: 2016-01-23 22:04:56
Message-ID: 7765.1453586696@sss.pgh.pa.us
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Noah Misch <noah(at)leadboat(dot)com> writes:
> To reliably produce exact answers, this code must delay all trigonometric
> calculations to runtime. On sungazer, the float8 test happens to pass if I
> rebuild float.c with -fno-builtin-sin; that leaves calls like acos(0.5) and
> cos(60.0 * RADIANS_PER_DEGREE) unprotected, though.

Either I missed something or there's another issue, because tern/sungazer
are *still* failing. This is getting annoying :-(

regards, tom lane

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