From e796b8b4f05c0ec529e4362688daa384b92f0228 Mon Sep 17 00:00:00 2001 From: Paul Ackersviller Date: Mon, 26 Nov 2007 03:28:15 +0000 Subject: Merge of 24068: attempt to make `printf "%g\n" -0 output "-0". --- Src/builtin.c | 22 +++++++++++++++++++--- 1 file changed, 19 insertions(+), 3 deletions(-) (limited to 'Src') diff --git a/Src/builtin.c b/Src/builtin.c index 24af7c6d3..d5b036b26 100644 --- a/Src/builtin.c +++ b/Src/builtin.c @@ -3849,9 +3849,25 @@ 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; -- cgit 1.4.1