deploy: c72f37a40d

api/basic_json/number_unsigned_t.md

@@ -20,6 +20,14 @@ used.
 To store unsigned integer numbers in C++, a type is defined by the template parameter `NumberUnsignedType` which chooses
 the type to use.
 
+## Template parameters
+
+`NumberUnsignedType`
+:   the type to store unsigned integers. It must be an **unsigned integral** type (`#!cpp std::is_integral`) with a
+    `#!cpp std::numeric_limits` specialization, and it must be able to represent the absolute value of every
+    [`number_integer_t`](number_integer_t.md) value. See
+    [Template Parameter Requirements](../../features/types/template_parameters.md#numberintegertype-and-numberunsignedtype).
+
 ## Notes
 
 #### Default type