TorosFanny questions

• It's really strange that sometimes gcc can't find reference of sqrt but sometimes gcc can
• where does haskell packages in nixpkgs go?
• If compiler of Haskell always needs polymorphic parameters of polymorphic functions to be specified with "::Int",why "show 2" is legal
• Listing all the contents of a directory by breadth-first order results in low efficiency
• Why directly imported functions in GHC differ so much with functions I write with the source code copied from GHC Libraries
• I want to write a function which is similar to `flip` in Haskell to get rid of lambda expressions. But I can't deal with it's type
• How to stop bash from creating subshells when recursively call a function
• Get all global variables/local variables in gdb's python interface
• Is it possible to found most of the errors in programs written in Haskell by adding a new feature, something I call it "subtype system", to Haskell?
• How to reshape a blob in Caffe?

TorosFanny answers