Fork#39763: different approximation of float in Wind and in Linux
Open Date: 2019-11-15 07:43
Last Update: 2019-11-15 07:43
URL for this Ticket:
https://osdn.net//projects/mingw/ticket/39763
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Last Changes/Comment on this Ticket:
2019-11-15 07:43 Updated by: claus
* New Ticket "different approximation of float in Wind and in Linux" created
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Ticket Status:
Reporter: claus
Owner: (None)
Type: Issues
Status: Open
Priority: 5 - Medium
MileStone: (None)
Component: GCC
Severity: 5 - Medium
Resolution: None
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Ticket details:
Dear developers, when I run the following code:
int x=5; printf ("%d\n" , (int)pow(x,2)); printf ("%d\n" , (int)pow(5,2));
I get different results if working on: - Windows 7 and 10, gcc version: gcc
(tdm-1) 5.1.0 from last MinGW was the same some years ago with previous
versions: the results are 24 and 25; - Linux, many distro, many gcc versions:
the results are 25 and 25. To me, the Windows answer should be the same as the
first argument is int 5 in both cases. Could you please give a clarification. I
wasn't able to find any justification for my univ. students. Thank you in
advance
Claus
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