MinTTY does not seem to raise a signal to my mingw-w64 program when I hit CTRL+C. In CMD with the same identical program the signal is correctly raised. Why is this?
The program is compiled under msys2 mingw-w64 with g++ -static -static-libstdc++ -std=c++14 -Wall -Wextra -pedantic testan.cpp. In both cases, signal() does not return SIG_ERR so the handler seems to be correctly installed.
code:
#include <chrono>
#include <thread>
#include <iostream>
#include <csignal>
using namespace std;
void signalHandler( int x ) {
cout << "Interrupt: " << x << endl;
exit( 123 );
}
int main () {
if( signal(SIGINT, signalHandler) == SIG_ERR )
cout << "received SIG_ERR" << endl;
while( true ) {
cout << "waiting for CTRL+C" << endl;
this_thread::sleep_for( 1s );
}
return 0;
}
mintty output:
$ ./a.exe
waiting for CTRL+C
waiting for CTRL+C
waiting for CTRL+C
$
CMD output:
C:\Users\Xunie\Desktop\project>a.exe
waiting for CTRL+C
waiting for CTRL+C
Interrupt: 2
C:\Users\Xunie\Desktop\project>
