Method testValueStack

test/value_stack.cpp:28–118

This is from the javadoc

public:
    // This is from the javadoc
    void
    testValueStack()
    {

    //----------------------------------
    // value_stack
    {
    // This example builds a json::value without any dynamic memory allocations:

    // Construct the value stack using a local buffer
    unsigned char temp[4096];
    value_stack st( storage_ptr(), temp, sizeof(temp) );

    // Create a static resource with a local initial buffer
    unsigned char buf[4096];
    static_resource mr( buf, sizeof(buf) );

    // All values on the stack will use `mr`
    st.reset(&mr);

    // Push the key/value pair "a":1.
    st.push_key("a");
    st.push_int64(1);

    // Push "b":null
    st.push_key("b");
    st.push_null();

    // Push "c":"hello"
    st.push_key("c");
    st.push_string("hello");

    // Pop the three key/value pairs and push an object with those three values.
    st.push_object(3);

    // Pop the object from the stack and take ownership.
    value jv = st.release();

    assert( serialize(jv) == "{\"a\":1,\"b\":null,\"c\":\"hello\"}" );

    // At this point we could re-use the stack by calling reset
    }

    //----------------------------------
    // value_stack::push_array
    {
        value_stack st;

        // reset must be called first or else the behavior is undefined
        st.reset();

        // Place three values on the stack
        st.push_int64( 1 );
        st.push_int64( 2 );
        st.push_int64( 3 );

        // Remove the 3 values, and push an array with those 3 elements on the stack
        st.push_array( 3 );