On 25/02/18 16:41, Bart wrote:
Delphi 10.2 Tokyo:
X = -1,5
VarIsFloat : TRUE
VarIsNumeric: TRUE
VarIsOrdinal: FALSE
After Abs()
X = 1,5
VarIsFloat : TRUE
VarIsNumeric: TRUE
VarIsOrdinal: FALSE
I asked to test with "X := -1" to see if Delphi always chooses the
float overload.
As Michael said, overloads are selected at compile time. This is true
for both FPC and Delphi. We even have over a 100 unit tests that we ran
under Delphi to reverse engineer their selection priorities in case of
variants: https://svn.freepascal.org/svn/fpc/trunk/tests/test/cg/variants/
Abs(), however, gets a forced conversion to float in Delphi:
https://bugs.freepascal.org/view.php?id=20551
Jonas
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