Make the 'n' format specifier work with grisu disabled

2019-07-04 15:15:14 -07:00
parent bc628f8d49
commit 1d3e3d8c04
4 changed files with 37 additions and 17 deletions
@@ -18,6 +18,13 @@ template <typename Char> struct numpunct : std::numpunct<Char> {
 TEST(LocaleTest, DoubleDecimalPoint) {
  std::locale loc(std::locale(), new numpunct<char>());
  EXPECT_EQ("1?23", fmt::format(loc, "{:n}", 1.23));
+  // Test with Grisu disabled.
+  fmt::memory_buffer buf;
+  fmt::internal::writer w(buf, fmt::internal::locale_ref(loc));
+  auto specs = fmt::format_specs();
+  specs.type = 'n';
+  w.write_double<double, false>(1.23, specs);
+  EXPECT_EQ(fmt::to_string(buf), "1?23");
 }

 TEST(LocaleTest, Format) {