From 49b5533000f87f000e080a634f173046c3d9dbe3 Mon Sep 17 00:00:00 2001
From: Dave Hylands <dhylands@gmail.com>
Date: Tue, 25 Feb 2014 15:11:17 -0800
Subject: [PATCH] Fix floating point printing of negative numbers in the range
(0, -1.0)
---
stm/printf.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/stm/printf.c b/stm/printf.c
index 7bac07ab7..cfe4204b6 100644
--- a/stm/printf.c
+++ b/stm/printf.c
@@ -219,9 +219,19 @@ int pfenv_printf(const pfenv_t *pfenv, const char *fmt, va_list args) {
mp_float_t d = va_arg(args, double);
int left = (int)d;
int right = (int)((d - (mp_float_t)(int)d) * 1000000.0);
- chrs += pfenv_print_int(pfenv, left, 1, 10, 'a', flags, width);
- chrs += pfenv_print_strn(pfenv, &dot, 1, flags, width);
- chrs += pfenv_print_int(pfenv, right, 0, 10, 'a', PF_FLAG_ZERO_PAD, 6);
+ if (right < 0) {
+ if (left == 0) {
+ chrs += pfenv_print_strn(pfenv, "-0", 2, flags, width);
+ } else {
+ chrs += pfenv_print_int(pfenv, left, 1, 10, 'a', flags, width);
+ }
+ chrs += pfenv_print_strn(pfenv, &dot, 1, flags, width);
+ chrs += pfenv_print_int(pfenv, -right, 0, 10, 'a', PF_FLAG_ZERO_PAD, 6);
+ } else {
+ chrs += pfenv_print_int(pfenv, left, 1, 10, 'a', flags, width);
+ chrs += pfenv_print_strn(pfenv, &dot, 1, flags, width);
+ chrs += pfenv_print_int(pfenv, right, 0, 10, 'a', PF_FLAG_ZERO_PAD, 6);
+ }
break;
}
default:
--
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