[Cfp-interest] 18661-4 and 754

[Fred J. Tydeman]

18661-4 asinpi has no mention of underflow (but does mention range error).
754 in table 9.1 mentions underflow.

18661-4 atanpi has no mention of underflow (but does mention range error).
754 in table 9.1 mentions underflow.

18661-4 atan2pi has no mention of underflow (but does mention range error).
754 in table 9.1 mentions underflow.

18661-4 atan2pi has extra "for finite x" for atan2pi(+/-inf,+/-inf).

18661-4 atan2pi has no mention of underflow (but does mention range error).
754 in table 9.1 mentions underflow.

18661-4 cospi has cospi(+/-0) returns 1.
754 has no such mention.

18661-4 sinpi has no mention of underflow or range error.
754 in table 9.1 mentions underflow.

18661-4 has tanpi 
754 has no mention of tanpi.

18661-4 exp10 has exp10(+/-0) returns 1.
754 has no such mention.

18661-4 exp10 has no mention of underflow or overflow (but does mention range error).
754 in table 9.1 mentions underflow and overflow.

18661-4 exp10m1 has no mention of underflow or range error for small x.
754 in table 9.1 mentions underflow.

18661-4 log2p1 has no mention of underflow or range error.
754 in table 9.1 mentions underflow.

18661-4 log10p1 has no mention of underflow (but does mention range error).
754 in table 9.1 mentions underflow.

18661-4 compoundn has
  compoundn(x, 0) returns 1 for x>= -1 or x a NaN. (allows signaling NaN)
754 has in 9.2.1
  compoundn(x, 0) returns 1 for x>= -1, +inf or quiet NaN.

18661-4 rootn has no mention of underflow or overflow (but does mention range error).
754 in table 9.1 mentions underflow and overflow.

18661-4 rootn(+/-inf,n) is mentioned.
754 has no mention of that case.

18661-4 pown(+/-inf,n) is mentioned.
754 has no mention of that case.

18661-4 has no mention of these cases
754 has in 9.2.1
  powr(x,qNaN) is qNaN for x >= 0
  powr(qNaN,y) is qNaN


---
Fred J. Tydeman        Tydeman Consulting
tydeman at tybor.com      Testing, numerics, programming
+1 (702) 608-6093      Vice-chair of PL22.11 (ANSI "C")
Sample C99+FPCE tests: http://www.tybor.com
Savers sleep well, investors eat well, spenders work forever.