Boost C++ Libraries

Indicate the end of JSON input.

void
finish();

This function is used to indicate that there are no more character buffers in the current JSON being parsed. If ther resulting JSON is incomplete, the error is set to indicate a parsing failure.

In the code below, finish is called to indicate there are no more digits in the resulting number:

stream_parser p;                                // construct a parser
p.write( "3." );                                // write the first part of the number
p.write( "14" );                                // write the second part of the number
assert( ! p.done() );                           // there could be more digits
p.finish();                                     // indicate the end of the JSON input
assert( p.done() );                             // now we are finished
value jv = p.release();                         // take ownership of the value

Constant.

Basic guarantee. Calls to memory_resource::allocate may throw. Upon error or exception, subsequent calls will fail until reset is called to parse a new JSON.