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Fix RealVal for floats requiring scientific notation #117

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Merged
daniel-larraz merged 1 commit into from
Aug 12, 2026
Merged

Fix RealVal for floats requiring scientific notation #117

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12 changes: 12 additions & 0 deletions cvc5_pythonic_api/cvc5_pythonic.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3505,8 +3505,20 @@ def RealVal(val, ctx=None):
3/5
>>> RealVal("1.5")
3/2
>>> RealVal(1.5)
3/2
>>> RealVal(1e-5)
1/100000
>>> RealVal(1e-11).eq(RatVal(1, 10**11))
True
"""
ctx = _get_ctx(ctx)
if isinstance(val, float):
# `str` may use scientific notation (e.g. `str(1e-5) == '1e-05'`),
# which `mkReal` does not accept. `repr` gives the shortest decimal
# that round-trips to `val`, and formatting the resulting `Decimal`
# with `'f'` expands it without an exponent and without rounding.
return RatNumRef(ctx.tm.mkReal(format(Decimal(repr(val)), "f")), ctx)
return RatNumRef(ctx.tm.mkReal(str(val)), ctx)


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