diff options
Diffstat (limited to '3rdparty/pugixml/docs/samples/load_memory.cpp')
-rw-r--r-- | 3rdparty/pugixml/docs/samples/load_memory.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/3rdparty/pugixml/docs/samples/load_memory.cpp b/3rdparty/pugixml/docs/samples/load_memory.cpp new file mode 100644 index 00000000000..80bba3cdb76 --- /dev/null +++ b/3rdparty/pugixml/docs/samples/load_memory.cpp @@ -0,0 +1,66 @@ +#include "pugixml.hpp" + +#include <iostream> +#include <cstring> + +int main() +{ +// tag::decl[] + const char source[] = "<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>"; + size_t size = sizeof(source); +// end::decl[] + + pugi::xml_document doc; + + { + // tag::load_buffer[] + // You can use load_buffer to load document from immutable memory block: + pugi::xml_parse_result result = doc.load_buffer(source, size); + // end::load_buffer[] + + std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl; + } + + { + // tag::load_buffer_inplace_begin[] + // You can use load_buffer_inplace to load document from mutable memory block; the block's lifetime must exceed that of document + char* buffer = new char[size]; + memcpy(buffer, source, size); + + // The block can be allocated by any method; the block is modified during parsing + pugi::xml_parse_result result = doc.load_buffer_inplace(buffer, size); + // end::load_buffer_inplace_begin[] + + std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl; + + // tag::load_buffer_inplace_end[] + // You have to destroy the block yourself after the document is no longer used + delete[] buffer; + // end::load_buffer_inplace_end[] + } + + { + // tag::load_buffer_inplace_own[] + // You can use load_buffer_inplace_own to load document from mutable memory block and to pass the ownership of this block + // The block has to be allocated via pugixml allocation function - using i.e. operator new here is incorrect + char* buffer = static_cast<char*>(pugi::get_memory_allocation_function()(size)); + memcpy(buffer, source, size); + + // The block will be deleted by the document + pugi::xml_parse_result result = doc.load_buffer_inplace_own(buffer, size); + // end::load_buffer_inplace_own[] + + std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl; + } + + { + // tag::load_string[] + // You can use load to load document from null-terminated strings, for example literals: + pugi::xml_parse_result result = doc.load_string("<mesh name='sphere'><bounds>0 0 1 1</bounds></mesh>"); + // end::load_string[] + + std::cout << "Load result: " << result.description() << ", mesh name: " << doc.child("mesh").attribute("name").value() << std::endl; + } +} + +// vim:et |