From 7b1fc2f95d000317496107b736037311cb67ba4b Mon Sep 17 00:00:00 2001
From: Maya Warrier <maya.warrierm@gmail.com>
Date: Thu, 14 Sep 2023 21:07:22 -0400
Subject: [PATCH] Add an option to allow inf/nan even in json mode - Most JSON
 parsers offer this option too

---
 include/fast_float/float_common.h |  1 +
 tests/json_fmt.cpp                | 11 +++++------
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/fast_float/float_common.h b/include/fast_float/float_common.h
index c101673..2ad9e8c 100644
--- a/include/fast_float/float_common.h
+++ b/include/fast_float/float_common.h
@@ -20,6 +20,7 @@ enum chars_format {
   hex = 1 << 3,
   no_infnan = 1 << 4,
   json = FASTFLOAT_JSONFMT | fixed | scientific | no_infnan,
+  json_or_infnan = FASTFLOAT_JSONFMT | fixed | scientific,
   general = fixed | scientific
 };
 
diff --git a/tests/json_fmt.cpp b/tests/json_fmt.cpp
index 1fdd636..bdd32d9 100644
--- a/tests/json_fmt.cpp
+++ b/tests/json_fmt.cpp
@@ -10,16 +10,15 @@
 
 int main()
 {
-  const std::vector<double> expected{ -0.2, 0.02, 0.002, 1., 0. };
-  const std::vector<std::string> accept{ "-0.2", "0.02", "0.002", "1e+0000", "0e-2" };
-  const std::vector<std::string> reject{ "-.2", "00.02", "0.e+1", "00.e+1", ".25", "+0.25", "inf", "nan(snan)"};
-  const auto fmt = fast_float::chars_format::json;
+  const std::vector<double> expected{ -0.2, 0.02, 0.002, 1., 0., std::numeric_limits<double>::infinity() };
+  const std::vector<std::string> accept{ "-0.2", "0.02", "0.002", "1e+0000", "0e-2", "inf" };
+  const std::vector<std::string> reject{ "-.2", "00.02", "0.e+1", "00.e+1", ".25", "+0.25", "inf", "nan(snan)" };
 
   for (std::size_t i = 0; i < accept.size(); ++i)
   {
     const auto& f = accept[i];
     double result;
-    auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fmt);
+    auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fast_float::chars_format::json_or_infnan);
     if (answer.ec != std::errc() || result != expected[i]) {
       std::cerr << "json fmt rejected valid json " << f << std::endl;
       return EXIT_FAILURE;
@@ -30,7 +29,7 @@ int main()
   {
     const auto& f = reject[i];
     double result;
-    auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fmt);
+    auto answer = fast_float::from_chars(f.data(), f.data() + f.size(), result, fast_float::chars_format::json);
     if (answer.ec == std::errc()) {
       std::cerr << "json fmt accepted invalid json " << f << std::endl;
       return EXIT_FAILURE;