Due to python nature (being interactive) you can use function like dir() and help() but there no such thing in c (since it would not even make sense). to get an explanation about a function or a library:
since this is about the standard library take a look at:
- the standard specification
- ask the manual with
man <function>orman <header> - if your on Unix/Linux go see here for the unix standard specification
solved What is the C equivalent of python’s help() and dir() functions?