The printf-posix module already provides %a; add a regression test matching the example from --help.
* tests/printf/printf-a.sh: New test. * tests/local.mk (all_tests): Add it. Signed-off-by: Iván Ezequiel Rodriguez <[email protected]> --- tests/local.mk | 1 + tests/printf/printf-a.sh | 30 ++++++++++++++++++++++++++++++ 2 files changed, 31 insertions(+) create mode 100755 tests/printf/printf-a.sh diff --git a/tests/local.mk b/tests/local.mk index ca2a0b8..bdfe793 100644 --- a/tests/local.mk +++ b/tests/local.mk @@ -415,6 +415,7 @@ all_tests = \ tests/paste/multi-byte.sh \ tests/printf/printf.sh \ tests/printf/printf-cov.pl \ + tests/printf/printf-a.sh \ tests/printf/printf-hex.sh \ tests/printf/printf-indexed.sh \ tests/printf/printf-mb.sh \ diff --git a/tests/printf/printf-a.sh b/tests/printf/printf-a.sh new file mode 100755 index 0000000..5040e52 --- /dev/null +++ b/tests/printf/printf-a.sh @@ -0,0 +1,30 @@ +#!/bin/sh +# Ensure printf(1) supports the %a hex-float conversion. + +# Copyright (C) 2026 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ printf + +# Example from the --help table (value 2^-10). +env printf '%a\n' 0.0009765625 > out || fail=1 +# Accept either 0x8p-13 or 0x1p-10 (both represent the same value). +case $(cat out) in + 0x8p-13|0x1p-10|0X8P-13|0X1P-10) ;; + *) cat out; fail=1 ;; +esac + +Exit $fail -- 2.43.0
