Shows how to use xtd::delegate class.
#define TRACE
#include <xtd/xtd>
using writer = delegate<void(const string& str)>;
void write_debug(const string& str) {
cdebug << str << environment::new_line;
}
class tracer {
public:
void write_trace(const string& str) {
ctrace << str << environment::new_line;
}
void write_trace2(const string& str) {
ctrace <<
"2 " << str << environment::new_line;
}
};
auto main() -> int {
console::out << str << environment::new_line;
};
console::error << str << environment::new_line;
};
write += {tracer(), &tracer::write_trace};
write += {
t, &tracer::write_trace2};
write -= {
t, &tracer::write_trace2};
struct writer {
writer() = default;
void operator()(const string& str) {
console::write_line(str);
}
};
}
std::ostream ctrace(nullptr)
Provides an std::ostream for xtd::diagnostics::trace.
#define delegate_
The declaration of a delegate type is similar to a method signature. It has a return value and any nu...
Definition delegate.hpp:900
@ write
Write access to the file. Data can be written to the file. Combine with Read for read/write access.
Definition file_access.hpp:19
@ t
The T key.
Definition console_key.hpp:126