Re: warning: comparison of integer expressions of different signedness related to simd.h - Mailing list pgsql-hackers

From Tom Lane
Subject Re: warning: comparison of integer expressions of different signedness related to simd.h
Date
Msg-id 1311246.1662184652@sss.pgh.pa.us
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In response to Re: warning: comparison of integer expressions of different signedness related to simd.h  (John Naylor <john.naylor@enterprisedb.com>)
Responses Re: warning: comparison of integer expressions of different signedness related to simd.h
Re: warning: comparison of integer expressions of different signedness related to simd.h
List pgsql-hackers
John Naylor <john.naylor@enterprisedb.com> writes:
> On Sat, Sep 3, 2022 at 12:30 PM Pavel Stehule <pavel.stehule@gmail.com> wrote:
>> /usr/local/pgsql/master/include/server/port/simd.h: In function ‘vector8_has’:
>> /usr/local/pgsql/master/include/server/port/simd.h:168:27: warning: comparison of integer expressions of different
signedness:‘int’ and ‘long unsigned int’ [-Wsign-compare] 
>> 168 |         for (int i = 0; i < sizeof(Vector8); i++)

> "int" should probably be "Size" -- does that remove the warning?

Agreed, should be Size or size_t, or else cast the sizeof() result.
But I wonder why none of the buildfarm is showing such a warning.

            regards, tom lane



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