Gdb get return value of function

int fun() {
	return 42;
}

int main() {
	fun();
    return 0;
}

(gdb) break 2   // set breakpoint at line 2
(gdb) r

Breakpoint 1, fun () at test.c:2
2               return 42;

(gdb) finish   // $1 is the value the function returned.

Run till exit from #0  fun () at test.c:2
main () at test.c:7
7               return 0;
Value returned is $1 = 42   // we get the return value is 42

Source: stackoverflow.com

Similar codes

0 vote335 views1 answer
String hash
C++
13 votes341 views6 answers
Cin in c++
C++
0 vote336 views1 answer
& in xml
C++
0 vote329 views1 answer
C++ fonksion pointer
C++
0 vote306 views6 answers
C++ to c converter online
C++
3 votes341 views2 answers
Fast Inverse Square Root
C++
0 vote344 views1 answer
Max pooling in c++
C++
4 votes360 views1 answer
Delete 2d dynamic array c++
C++
1 vote331 views1 answer
Push front vector cpp
C++
0 vote328 views1 answer
Std::map get all keys
C++