[cfp-interest 3565] Re: C23 possible defect: output bounds of imprecise math functions

Fred J. Tydeman tydeman at tybor.com
Fri Aug 15 19:03:05 PDT 2025


On Fri, 15 Aug 2025 15:34:46 -0700 Jim Thomas wrote:
>
>Description
>2 The asin functions compute the principal value of the arc sine of x, which is in the interval [/2, +/2] radians. A domain error occurs for arguments not in the interval [1, +1]. A range error occurs if nonzero x is too close to zero.
>Returns
>3 The asin functions return the principal value of arcsin x.
>

How about adding:  "(before rounding)"  after either "interval" or "radians"?

---
Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (702) 608-6093      Vice-chair of INCITS/C (ANSI "C")
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