bugAVR C Runtime Library - Bugs: bug #57114, Do not #define abs / labs

 
 

bug #57114: Do not #define abs / labs

Submitted by:  Georg-Johann Lay <gjlayde>
Submitted on:  Fri 25 Oct 2019 08:42:00 AM UTC  
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  None
Status:  None Assigned to:  None
Percent Complete:  0% Open/Closed:  Open
Release:  2.0.0 Fixed Release:  None

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Fri 25 Oct 2019 08:42:00 AM UTC, original submission:  

#define'ing abs is evil, in particular together with C++ when there are methods called abs or there is abs polymorphism.

Same for labs.

The patch provides proper functions (kind of) without introducing overhead.

        * include/stdlib.h (__ATTR_ALWAYS_INLINE__): New macro.
        (abs): Provide in such a way that we get a prototype.
        (labs): Same.

Georg-Johann Lay <gjlayde>

 

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Attach Files:
   
   
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Attached Files
file #47738:  stdlib-abs.diff added by gjlayde (1KiB - text/x-patch)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-10-25 gjlayde Attached File- => Added stdlib-abs.diff, #47738

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