Component bdljsn_jsontype [Package bdljsn]

Enumerate the set of JSON value types. More...

Namespaces
namespace	bdljsn

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Detailed Description

Outline

• Purpose
• Classes
• Description
  • Enumerators
  • Usage
    • Example 1: Basic Syntax

Purpose:

Enumerate the set of JSON value types.

Classes:

bdljsn::JsonType

namespace for a enum of JSON value types

See also:

Component bdljsn_json, Component bdljsn_jsonutil, bdljsn_jsonvalue

Description:

This component provides a namespace for the enum type bdljsn::JsonType::Enum, which enumerates the set of fundamental JSON types in the JSON specification (see http://json.org).

Enumerators:

  Name            Description
  -------------   ---------------------------------------------------
  e_OBJECT        A JSON object
  e_ARRAY         A JSON array
  e_STRING        A JSON string
  e_NUMBER        A JSON number
  e_BOOLEAN       true or false
  e_NULL          null

Usage:

This section illustrates intended use of this component.

Example 1: Basic Syntax:

The following snippets of code provide a simple illustration of using bdljsn::JsonType.

First, we create a variable value of type bdljsn::JsonType::Enum and initialize it with the enumerator value bdljsn::JsonType::e_STRING:

  bdljsn::JsonType::Enum value = bdljsn::JsonType::e_STRING;

Now, we store the address of its ASCII representation in a pointer variable, asciiValue, of type const char *:

  const char *asciiValue = bdljsn::JsonType::toAscii(value);
  assert(0 == bsl::strcmp(asciiValue, "STRING"));

Finally, we print value to bsl::cout.

  bsl::cout << value << bsl::endl;

This statement produces the following output on stdout:

  STRING