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Posted to dev@qpid.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2016/10/20 16:02:58 UTC
[jira] [Commented] (PROTON-1324) Interpretation of "int8_t" on
Solaris using SunStudio is different from GCC one
[ https://issues.apache.org/jira/browse/PROTON-1324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15592216#comment-15592216 ]
ASF subversion and git services commented on PROTON-1324:
---------------------------------------------------------
Commit a1f0dd167563bd9643c7d06419da11244d119752 in qpid-proton's branch refs/heads/master from [~aconway]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-proton.git;h=a1f0dd1 ]
PROTON-1324: c++ correct implementation of proton::is_signed<char>
This uses std::numeric_limits<char> to get the platform setting, which works on
C++03 and should be portable.
> Interpretation of "int8_t" on Solaris using SunStudio is different from GCC one
> -------------------------------------------------------------------------------
>
> Key: PROTON-1324
> URL: https://issues.apache.org/jira/browse/PROTON-1324
> Project: Qpid Proton
> Issue Type: Bug
> Components: cpp-binding
> Reporter: Adel Boutros
> Assignee: Cliff Jansen
> Attachments: 0010-SunStudio-Fix-the-interpretation-of-int8_t.patch
>
>
> Looking at the standard, there are actually 3 ways to define a char:
> * char
> * signed char
> * unsigned char
> There are no specificatoins regarding what "char" will be interperted as either "signed char" or "unsigned char". This is left to the OS/Compiler to choose.
> Solaris: int8_t --> char
> Linux: int8_t --> signed char
> You can check here: http://en.cppreference.com/w/cpp/language/types
> {quote}
> char - type for character representation which can be most efficiently processed on the target system (has the same representation and alignment as either signed char or unsigned char, but is always a distinct type). Multibyte characters strings use this type to represent code units.
> {quote}
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