1.3 KiB
| slug | title | author | order |
|---|---|---|---|
| /general/debugging | Debugging | Benjamin Qi | 6 |
Compilation
I use the following command:
g++ -std=c++11 -O2 -o $1 $1.cpp -Wall -Wextra -Wshadow -DLOCAL -Wl,-stack_size -Wl,0xF0000000;
Warnings
See here.
-Wall -Wextra -Wshadow
Stack Size
According to this comment, -Wl,-stack_size -Wl,0xF0000000 increases the stack size on Mac (otherwise, you might get RTE).
(Documentation?)
Other
-fsanitize=undefined -fsanitize=address
-D_GLIBCXX_DEBUG -g
(someone want to explain these? I don't use)
Printing
Although not feasible if you have to write all code from scratch, I find this very helpful. dbg() only produces output when -DLOCAL is included as part of the compilation command.
(add examples of usage)
Stress Testing
You can use a simple script to test two solutions against each other. See Errichto's video on testing solutions for more information.
Debugger
Ok I don't actually know how to use ... (someone else want to add?)