Texas Instruments TMS34010 Reference Guide

Compiler Operation - Preprocessor Description
3.1.3 Specifying Alternate Directories for Include Files
The #include preprocessor directive tells the preprocessor to read source
statements from another
file. The syntax for this directive is:
#include "filename"
or
#include <filename>
The filename names an include file that the preprocessor reads statements
from; you can
enclose the filename in double quotes or in angle brackets. The
filename can be a
complete pathname or a filename with no path information.
• If you provide path information for filename, the preprocessor uses that
path and does
not look for the file in any other directories.
• If you do not provide path information and you enclose the filename in
angle brackets, the preprocessor searches for the file in:
1) Any directories named with the -i preprocessor option.
2)
Any directories set with the environment variable C-DIR.
Note that if you enclose the filename in angle brackets, the preprocessor
does
not search for the file in the current directory.
C/!) If you do not provide path information and you enclose the filename in
double quotes, the preprocessor searches for the file in:
1) The directory that contains the current source file. (The current
source
file refers to the file that is being processed when the pre-
processor encounters the
#include directive.)
2)
Any directories named with the -i preprocessor option.
3)
Any directories set with the environment variable C-DIR.
You can augment the preprocessor's directory search algorithm by using the
-i preprocessor
option or the environment variable C-DIR.
3.1.3.1 -i Preprocessor Option
3-4
The -i preprocessor option names an alternate directory that contains include
files. The format of the -i option is:
gspcpp -ipathname
You can use up
to 10 -i options per invocation; each -i option names one
pathname.
In C source, you can use the #include directive without specifying
any path information for the
file; instead, you can specify the path information
with the -i option. For example, assume that a file called source. c is in the
current directory;
source. c contains the following directive statement:
#include "alt.c"
The table below lists the complete path name for alt. c and shows how to
invoke the preprocessor; select the row for your operating system.

Texas Instruments TMS34010 Specifications

General

Brand	Texas Instruments
Model	TMS34010
Category	Computer Hardware
Language	English