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Note that Z3_get_numeral_small is essentially redundant

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The error behavior of Z3_get_numeral_small does not follow the pattern of
the other functions. The functions that have out params and return a bool
indicating success (such as Z3_get_numeral_rational_int64) return false
rather than signaling an error when given an unsupported expression
argument (such as a rounding mode value). The functions that do not have out
params signal an error in such cases. Z3_get_numeral_small is the odd one
out in that it signals errors and returns a status bool.

This error handling is the only difference between Z3_get_numeral_small and
Z3_get_numeral_rational_int64, so this patch adds a comment to the
documentation.
This commit is contained in:
Josh Berdine 2025-03-29 12:57:14 +00:00
parent 9b5a9b2089
commit e2d3f39735
1 changed files with 2 additions and 0 deletions
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src/api/z3_api.h
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@ -5109,6 +5109,8 @@ extern "C" {
Return \c true if the numeral value fits in 64 bit numerals, \c false otherwise.
Equivalent to \c Z3_get_numeral_rational_int64 except that for unsupported expression arguments \c Z3_get_numeral_small signals an error while \c Z3_get_numeral_rational_int64 returns \c false.
\pre Z3_get_ast_kind(a) == Z3_NUMERAL_AST
def_API('Z3_get_numeral_small', BOOL, (_in(CONTEXT), _in(AST), _out(INT64), _out(INT64)))