Am 09.07.2018 um 19:55 schrieb g...@wolfgang-ehrhardt.de:
Zitat von Martok <list...@martoks-place.de>:
To make sure this works, one has to manually make the const expression
be of the
type required:
const
e: Extended = Extended(1.0) / 3.0;
I seem to remember that this was once documented somewhere for Delphi.
Can't
seem to find it though, so maybe it was a 3rd-party book? There is no
hint of it
in the FPC documentation, anyway.
As already noted, it is not necessary in Delphi
D:\Work\TMP>D:\DMX\M18\DCC32 -b exttest.dpr
Embarcadero Delphi for Win32 compiler version 25.0
Copyright (c) 1983,2013 Embarcadero Technologies, Inc.
exttest.dpr(14)
15 lines, 0.00 seconds, 20816 bytes code, 13864 bytes data.
D:\Work\TMP>exttest
0.3333333433 0.3333333433
0.3333333333333333 0.3333333333333333
0.3333333333333333 0.3333333333333333
And with Delphi Tokio 10.2.3 Starter
G:\TMP>bds -b exttest.dpr
G:\TMP>exttest.exe
0.3333333433 0.3333333433
0.3333333333333333 0.3333333333333333
0.3333333333333333 0.3333333333333333
I am happy to implement this in delphi mode, but it requires some
documentation references how delphi evaluates such expressions (which
precision is used when and why) and how they are handled in expressions.
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