Yeah, I was a bit stingy with the information. However, I've since discovered that the debugger behavior is consistent, at least when it comes to breakpoints and general code behavior, the only issue is that stopping at a breakpoint stops the program output. For example, the following program gives this output when it hits the breakpoint:
#include <QDebug>
#include <unistd.h>
int main(int argc, char *argv[])
{
for (int i = 0; i < 20; ++i) {
qDebug() << "Printing line " << i << "\n";
}
int a = 0; // <-breakpoint here
}
07:50:37: Debugging starts
2020-09-04 07:50:44.162658-0700 editor[3615:65377] Printing line 0
2020-09-04 07:50:44.162689-0700 editor[3615:65377] Printing line 1
2020-09-04 07:50:44.162695-0700 editor[3615:65377] Printing line 2
2020-09-04 07:50:44.162699-0700 editor[3615:65377] Printing line 3
2020-09-04 07:50:44.162702-0700 editor[3615:65377] Printing line 4
2020-09-04 07:50:44.162706-0700 editor[3615:65377] Printing line 5
2020-09-04 07:50:44.162709-0700 editor[3615:65377] Printing line 6
2020-09-04 07:50:44.162713-0700 editor[3615:65377] Printing line 7
2020-09-04 07:50:44.162716-0700 editor[3615:65377] Printing line 8
2020-09-04 07:50:44.162720-0700 editor[3615:65377] Printing line 9
2020-09-04 07:50:44.162724-0700 editor[3615:65377] Printing line 10
2020-09-04 07:50:44.162727-0700 editor[3615:65377] Printing line 11
2020-09-04 07:50:44.162731-0700 editor[3615:65377] Printing line 12
2020-09-04 07:50:44.162735-0700 editor[3615:65377] Printing line 13
2020-09-04 07:50:44.162751-0700 editor[3615:65377] Pri
It just stops mid string like this. I've tried redirecting output to the terminal, but that just exits right away, without outputting anything. If I add usleep(20000); above the print line, it will print out all (20) of the strings. If I add usleep(10000); it will get to number 16.
I'm using QtCreator 4.13.0, Qt 5.15.0.
I'm using Clang that came with MacOS Catalina (x86 64bit in /usr/bin).
I'm using LLDB that came with it (also in /usr/bin/lldb).
This is a fresh install of the OS, there is nothing else installed on the system except the programs that came with it. MacOS version is 10.15.5.