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8b5087d4e6
* src/sort.c (general_numcompare): Use long doubles unconditionally, and strtold when available, to convert numbers with greater range and precision. Performance was seen to be on par with standard doubles. * doc/coreutils.texi (sort invocation): Amend the -g description to mention long double rather than double, and strtold rather than strtod. * src/getlimits.c (main): Output floating point limits for use in tests. * tests/misc/sort-float: A new test to ensure sort is using long doubles when possible, and that locale specific floats are handled. * tests/Makefile.am: Reference the new test. * tests/test-lib.sh (getlimits_): Normalize indenting. * NEWS: Mention the new behaviour. Reported by Nelson Beebe.
57 lines
1.3 KiB
Bash
Executable File
57 lines
1.3 KiB
Bash
Executable File
#!/bin/sh
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# Ensure sort -g sorts floating point limits correctly
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# Copyright (C) 2010 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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if test "$VERBOSE" = yes; then
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set -x
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sort --version
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fi
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. $srcdir/test-lib.sh
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for LOC in C $LOCALE_FR; do
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LC_ALL=$LOC getlimits_
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# See if sort should be using long doubles
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grep '^#define HAVE_C99_STRTOLD 1' $CONFIG_HEADER > /dev/null ||
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{ LDBL_MAX="$DBL_MAX"; LDBL_MIN="$DBL_MIN"; }
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printf -- "\
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-$LDBL_MAX
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-$DBL_MAX
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-$FLT_MAX
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-$FLT_MIN
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-$DBL_MIN
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-$LDBL_MIN
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0
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$LDBL_MIN
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$DBL_MIN
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$FLT_MIN
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$FLT_MAX
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$DBL_MAX
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$LDBL_MAX
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" |
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grep '^[0-9.,e+-]*$' > exp # restrict to numeric just in case
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tac exp | LC_ALL=$LOC sort -sg > out || fail=1
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compare out exp || fail=1
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done
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Exit $fail
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