Thread: pgsql: printf("%lf") is not portable, so omit the "l".

pgsql: printf("%lf") is not portable, so omit the "l".

From

Tom Lane

Date:

20 May 2018, 18:41:19

printf("%lf") is not portable, so omit the "l".

The "l" (ell) width spec means something in the corresponding scanf usage,
but not here.  While modern POSIX says that applying "l" to "f" and other
floating format specs is a no-op, SUSv2 says it's undefined.  Buildfarm
experience says that some old compilers emit warnings about it, and at
least one old stdio implementation (mingw's "ANSI" option) actually
produces wrong answers and/or crashes.

Discussion: https://postgr.es/m/21670.1526769114@sss.pgh.pa.us
Discussion: https://postgr.es/m/c085e1da-0d64-1c15-242d-c921f32e0d5c@dunslane.net

Branch
------
REL9_6_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/9c515f77d6cffb6f2576c5e9895cc0f29cc6279c

Modified Files
--------------
doc/src/sgml/ecpg.sgml                                    | 2 +-
src/interfaces/ecpg/test/compat_informix/sqlda.pgc        | 2 +-
src/interfaces/ecpg/test/expected/compat_informix-sqlda.c | 2 +-
src/interfaces/ecpg/test/expected/preproc-outofscope.c    | 2 +-
src/interfaces/ecpg/test/expected/sql-sqlda.c             | 2 +-
src/interfaces/ecpg/test/preproc/outofscope.pgc           | 2 +-
src/interfaces/ecpg/test/sql/sqlda.pgc                    | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)