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_5_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/29a4db65fbb752b2c0b212f331eb375532a7b9d9
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(-)