Why does Fish use things such as fopen and fprintf instead of streams

[lumynou5]

Is there any reason of this? like the performance or functionality

Example of uses:

fish-shell/src/fish.cpp

Line 459 in 3b55563

FILE *debug_output = nullptr;

[faho]

Fish used to be a C program (std::cout and such streams are a C++ feature), and streams are quite slow.

[lumynou5]

Got it. thx