{

//! [mapped_file]

namespace llfio = LLFIO_V2_NAMESPACE;

// Open the mapped file for read

llfio::mapped_file_handle mh = llfio::mapped_file( //

{}, // path_handle to base directory

"foo" // path_view to path fragment relative to base directory

// default mode is read only

// default creation is open existing

// default caching is all

// default flags is none

).value(); // If failed, throw a filesystem_error exception

auto length = mh.maximum_extent().value();

// Find my text

for (char *p = reinterpret_cast<char *>(mh.address()); (p = (char *)memchr(p, 'h', reinterpret_cast<char *>(mh.address()) + length - p)); p++)

{

if (strcmp(p, "hello"))

{

std::cout << "Happy days!" << std::endl;

}

}

//! [mapped_file]