The maximum nesting depth of #include
files is 35.
For include files that are enclosed in double quotes
and do not begin with a /,
the preprocessor will first search the current directory, then the
directory named in the -I
option, and finally, in the standard include directory /usr/include.
For include files that are enclosed in <
and > signs,
the search path begins with the directory named in the -I
option and is completed in the standard include directory, /usr/include.
The current directory is not searched.
