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-rw-r--r--ChangeLog6
-rw-r--r--Src/builtin.c22
2 files changed, 25 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index 8fcd16524..2fd6cb9a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-11-06 Peter Stephenson <pws@csr.com>
+
+ * 24068: Src/builtin.c: attempt to make `printf "%g\n" -0'
+ output "-0", although this depends on the vagaries of the
+ library's strtod() (works on Solaris, doesn't on Fedora 7).
+
2007-11-04 Wayne Davison <wayned@users.sourceforge.net>
* unposted: Completion/Unix/Command/_rsync: Added new options
diff --git a/Src/builtin.c b/Src/builtin.c
index 7420ed887..d69ab5591 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -4162,9 +4162,25 @@ bin_print(char *name, char **args, Options ops, int func)
break;
case 2:
if (curarg) {
- mnumval = matheval(curarg);
- doubleval = (mnumval.type & MN_FLOAT) ?
- mnumval.u.d : (double)mnumval.u.l;
+ char *eptr;
+ /*
+ * First attempt to parse as a floating
+ * point constant. If we go through
+ * a math evaluation, we can lose
+ * mostly unimportant information
+ * that people in standards organizations
+ * worry about.
+ */
+ doubleval = strtod(curarg, &eptr);
+ /*
+ * If it didn't parse as a constant,
+ * parse it as an expression.
+ */
+ if (*eptr != '\0') {
+ mnumval = matheval(curarg);
+ doubleval = (mnumval.type & MN_FLOAT) ?
+ mnumval.u.d : (double)mnumval.u.l;
+ }
} else doubleval = 0;
if (errflag) {
doubleval = 0;