Mojo: add support for {double,float}.{INFINITY,NEGATIVE_INFINITY,NAN}

mojo/public/tools/bindings/generators/mojom_cpp_generator.py

Index: mojo/public/tools/bindings/generators/mojom_cpp_generator.py
diff --git a/mojo/public/tools/bindings/generators/mojom_cpp_generator.py b/mojo/public/tools/bindings/generators/mojom_cpp_generator.py
index 8f90c419d57c1dc1377f79806d743a5723290856..3cfab78ee621b76e6fa2411b0a5c729bf675b83a 100644
--- a/mojo/public/tools/bindings/generators/mojom_cpp_generator.py
+++ b/mojo/public/tools/bindings/generators/mojom_cpp_generator.py
@@ -223,6 +223,23 @@ def TranslateConstants(token, kind):
     else:
       name.append(token.name)
     return "::".join(name)
+
+  if kind == mojom.DOUBLE:
+    if token == "Inf" or token == "+Inf":
+      return "std::numeric_limits<double>::infinity()"

[viettrungluu, 2014/08/14 22:32:25]

This (and everything else) probably creates a static initializer if used for
constant values, in C++03. It may be better to use the C macros from <math.h>.

+    if token == "-Inf":
+      return "-std::numeric_limits<double>::infinity()"
+    if token == "NaN":
+      return "std::numeric_limits<double>::quiet_NaN()"
+
+  if kind == mojom.FLOAT:
+    if token == "Inf" or token == "+Inf":
+      return "std::numeric_limits<float>::infinity()"
+    if token == "-Inf":
+      return "-std::numeric_limits<float>::infinity()"
+    if token == "NaN":
+      return "std::numeric_limits<float>::quiet_NaN()"
+
   return '%s%s' % (token, _kind_to_cpp_literal_suffix.get(kind, ''))
 
 def ExpressionToText(value, kind=None):