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Re: MinGW / Windows / printf format specifiers - Mailing list pgsql-hackers

From Craig Ringer
Subject Re: MinGW / Windows / printf format specifiers
Date
Msg-id CAMsr+YGh1fhc5f4JnA1HSi5o+tdndfKvVA-5q8VzJSOWQV738w@mail.gmail.com
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In response to MinGW / Windows / printf format specifiers  (Chapman Flack <chap@anastigmatix.net>)
Responses Re: MinGW / Windows / printf format specifiers
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On 19 February 2016 at 12:15, Chapman Flack <chap@anastigmatix.net> wrote:
 

The cause seems to be that Windows conventions have int = long = int32
(even on 64-bit platforms) and only 'long long' = int64.

Yes, it's an LLP64 platform.

 
The Java JNI
headers of course know this, so they type jlong as 'long long', while
jint they type as 'long' - curiously, because they could just call it
int and get the same width. Maybe a habit from a 16-bit C environment?

They should be using the (u)int(nn)_t typedefs like int64_t, but some compilers lag in their support for them.
 
Have issues like this been dealt with in PostgreSQL code before, and did
a favorite approach emerge?

INT64_FORMAT and UINT64_FORMAT

src/include/c.h 

git grep INT64_FORMAT


--
 Craig Ringer                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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