59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
|
// Copyright 2012 Google Inc.
|
||
|
// All rights reserved.
|
||
|
//
|
||
|
// Redistribution and use in source and binary forms, with or without
|
||
|
// modification, are permitted provided that the following conditions are
|
||
|
// met:
|
||
|
//
|
||
|
// * Redistributions of source code must retain the above copyright
|
||
|
// notice, this list of conditions and the following disclaimer.
|
||
|
// * Redistributions in binary form must reproduce the above copyright
|
||
|
// notice, this list of conditions and the following disclaimer in the
|
||
|
// documentation and/or other materials provided with the distribution.
|
||
|
// * Neither the name of Google Inc. nor the names of its contributors
|
||
|
// may be used to endorse or promote products derived from this software
|
||
|
// without specific prior written permission.
|
||
|
//
|
||
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
||
|
/// \file examples/hello.cpp
|
||
|
/// Minimal example using Lua code to print a traditional hello-world message.
|
||
|
|
||
|
#include <cstdlib>
|
||
|
|
||
|
#include <lutok/state.ipp>
|
||
|
|
||
|
|
||
|
/// Program's entry point.
|
||
|
///
|
||
|
/// \return A system exit code.
|
||
|
int
|
||
|
main(void)
|
||
|
{
|
||
|
// Initializes a new Lua state. Every Lua state is independent from each
|
||
|
// other.
|
||
|
lutok::state state;
|
||
|
|
||
|
// Loads the standard library into the Lua state. Among many other
|
||
|
// functions, this gives us access to print(), which is used below.
|
||
|
state.open_base();
|
||
|
|
||
|
// Pushes the print() function into the Lua stack, then its only argument,
|
||
|
// and then proceeds to execute it within the Lua state.
|
||
|
state.get_global("print");
|
||
|
state.push_string("Hello, world!");
|
||
|
state.pcall(1, 0, 0);
|
||
|
|
||
|
return EXIT_SUCCESS;
|
||
|
}
|