"real? sqrt (-sqrt 2)" returns "true" by default.
Because interpreter prefers CTRIGMNP over TRIGMNIP
as shown by ")set mes bot on":
Function Selection for real?
Arguments: AN
[1] signature: EXPR(COMPLEX(INT)) -> BOOLEAN
implemented: slot (Boolean)(Expression (Complex (Integer))) from
CTRIGMNP(INT,EXPR(COMPLEX(INT)))
[2] signature: EXPR(INT) -> BOOLEAN
implemented: slot (Boolean)(Expression (Integer)) from
TRIGMNIP(INT,EXPR(INT))
Shall we consider this a bug?
- Qian
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