Bug 4714 - [csc] Conditional operator expression with literals
Summary: [csc] Conditional operator expression with literals
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: PC Windows
: --- enhancement
Target Milestone: ---
Assignee: Marek Safar
: 6363 ()
Depends on:
Reported: 2012-04-28 16:43 UTC by James Bellinger
Modified: 2012-08-09 03:46 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description James Bellinger 2012-04-28 16:43:21 UTC
Mono's C# compiler will not assume a return type (saying they are implicitly castable) between int and byte/int and sbyte, when one of the conditional parameters is a constant.

For example, Mono's C# compiler had a problem with this code of mine:

byte size = DataSize;
buffer.Add((byte)((size == 4 ? 3 : size) | (other stuff)));

This was fixed by changing to size == 4 ? (byte)3 : size.
The Microsoft compiler does not require this. Hence the code fails to compile on the Mono C# compiler but works on the Microsoft one.
Comment 2 Marek Safar 2012-08-08 13:38:15 UTC
*** Bug 6363 has been marked as a duplicate of this bug. ***
Comment 3 Marek Safar 2012-08-09 03:46:27 UTC
Implemented in master