Show how to use xtd::io::binary_reader class.
#include <xtd/io/binary_reader>
#include <xtd/io/binary_writer>
#include <xtd/io/file>
#include <xtd/console>
#include <xtd/startup>
#include <xtd/using>
using namespace std;
class program {
inline static const ustring file_name =
"app_settings.dat";
public:
static auto main() {
write_default_values();
display_values();
}
static void write_default_values() {
using_(
auto fs = file::open(file_name, ios::out | ios::binary | ios::trunc)) {
writer << 1.250F;
writer << R"(c:\Temp)";
writer << 10;
writer << true;
}
}
static void display_values() {
auto aspect_ratio = .0f;
auto temp_directory = ustring::empty_string;
auto auto_save_time = 0;
auto show_status_bar = false;
if (file::exists(file_name)) {
using_(
auto fs = file::open(file_name, ios::in | ios::binary)) {
reader >> aspect_ratio;
reader >> temp_directory;
reader >> auto_save_time;
reader >> show_status_bar;
}
console::write_line("Aspect ratio set to: {}", aspect_ratio);
console::write_line("Temp directory is: {}", temp_directory);
console::write_line("Auto save time set to: {}", auto_save_time);
console::write_line("Show status bar: {}", show_status_bar);
}
}
};