From 260c1159088a9622f374d362353b3d114d8654bf Mon Sep 17 00:00:00 2001
From: Victor Zverovich <victor.zverovich@gmail.com>
Date: Sun, 30 Jun 2019 06:54:41 -0700
Subject: [PATCH] Fix formatting of 0.0 with  (#1210)

---
 include/fmt/format-inl.h | 2 +-
 test/format-test.cc      | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/fmt/format-inl.h b/include/fmt/format-inl.h
index 0ce96b28..5cda7307 100644
--- a/include/fmt/format-inl.h
+++ b/include/fmt/format-inl.h
@@ -685,7 +685,7 @@ FMT_API bool grisu_format(Double value, buffer<char>& buf, int precision,
   FMT_ASSERT(value >= 0, "value is negative");
   bool fixed = (options & grisu_options::fixed) != 0;
   if (value <= 0) {  // <= instead of == to silence a warning.
-    if (precision < 0 || !fixed) {
+    if (precision <= 0 || !fixed) {
       exp = 0;
       buf.push_back('0');
     } else {
diff --git a/test/format-test.cc b/test/format-test.cc
index 2b9b5857..da2fd721 100644
--- a/test/format-test.cc
+++ b/test/format-test.cc
@@ -1452,6 +1452,7 @@ TEST(FormatterTest, FormatDouble) {
 }
 
 TEST(FormatterTest, PrecisionRounding) {
+  EXPECT_EQ("0", format("{:.0f}", 0.0));
   EXPECT_EQ("0", format("{:.0f}", 0.1));
   EXPECT_EQ("0.000", format("{:.3f}", 0.00049));
   EXPECT_EQ("0.001", format("{:.3f}", 0.0005));