using gdb on fstream of c++ -


i have std::fstream object in code, std::fstream input reading values files. how can check status of input inside gdb debugger? tried print input.fail(), says:

couldn't find method std::ifstream::fail

this because have not installed debug symbols libstdc++ (this std::fstream resides).

if try print input variable without debug symbols libstdc++:

(gdb) p input $1 = <incomplete type>

i've reproduced issue on fedora , issue gone (input variable printed , input.fail() called) after installed debug info command:

sudo debuginfo-install libstdc++

see similar issue std::stringstream here:
https://www.reddit.com/r/learnprogramming/comments/5dwtbb/gdb_looking_into_streams/


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