How to call into catch manually

#define CATCH_CONFIG_RUNNER
#include "catch.hpp"
int main(int argc, char* argv[])
{
REQUIRE_THROWS(connected);
int result = Catch::REQUIRE_THROWS(connected);
return result;
}
the console output no infoemation,neither case pass nor case fail.

while I expect console controller to tell me whether the REQUIRE passed.
**Reproduction steps**
Steps to reproduce the bug.

**Platform information:**

- OS: **Windows NT**
- Compiler+version: **GCC v2.9.5**
- Catch version: **v1.2.3**

**Additional context**
Add any other context about the problem here.