HP C A.06.05 Reference Manual

HP C/HP-UX Implementation Topics
Preprocessor
Chapter 10 251
Preprocessor
• 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.