Description |
 |
In the third form above, identifier must be in the form of one of the first two choices
after macro replacement.
The #include preprocessing directive causes the compiler to
switch its input file so that source is taken from the file named
in the include directive. Historically, include files are named:
filename.h
If the file name is enclosed in double quotation marks, the
compiler searches your current directory for the specified file.
If the file name is enclosed in angle brackets, the “system” directory
is searched to find the named file. Refer to Chapter 10 for a detailed
description of how the directory is searched.
Files that are included may contain #include directives themselves. The HP C compiler supports
a nesting level of at least 35 #include files.
The arguments to the #include directive are subject to macro replacement before
the directive processes them. Error messages produced by the HP
C compiler usually supply the file name the error occurred in as
well as the file relative line number of the error.
