Texas Instruments TMS34010 Reference Guide

Compiler Operation - Preprocessor Description
DOS:
VMS:
UNIX:
MPW:
Pathname for alto c Invocation Command
c:\gsp\files\alt.c gspcpp
-ic:\gsp\files source.c
[gsp. files] al t. c
gspcpp -i[gsp.files] source.c
/gsp/files/alt.c gspcpp
-i/gsp/files
source.c
:gsp
:files
:alt .c
gspcpp
-i
:gsp :files source.c
Note that the include filename is enclosed in double quotes. The preprocessor
first searches for
alt. c in the current directory, because source. c is in the
current directory. Then, the preprocessor searches the directory named
with
the -i option.
3.1.3.2 Environment Variable
DOS:
VMS:
UNIX:
MPW:
An environment variable is a system symbol that you define and assign a string
to. The preprocessor uses
an environment variable named C-DIR to name
alternate directories that contain include files. The commands
for assigning
the environment variable
are:
set C-DIR=pathname;another pathname ...
assign "pathname;another pathname ... " C-DIR
UNIX: setenv C-DIR "pathname;another pathname '" "
MPW: set C-DIR ":pathname;another: pathname ... "
export C-DIR
The pathnames are directories that contain include files. You can separate
pathnames
with a semicolon or with blanks. In C source, you can use the
#include directive
without specifying any path information; instead, you can
specify the path information
with C-D I R.
For example, assume that a file called source. c contains these statements:
#include <altl.c>
#include <alt2.c>
The table below lists the complete pathnames for these files and shows how
to invoke the preprocessor; select the row for your operating system.
Pathnames for altl. c and
alt2.c
Invocation Command
c:\gsp\files\altl.c
c:\gsys\alt2.c
set C-DIR=c:\gsys c:\exec\files
gspcpp -ic:\gsp\files source.c
[gsp.files]altl.c assign
C-DIR " [gsys] [exec.files]"
[gsys]alt2.c
gspcpp -i[gsp.files] source.c
/gsp/files/altl.c setenv
C_DIR "/gsys
/exec/files
/gsys/alt2.c gspcpp
-i\gsp\files source. c I
:gsp :files :altl .c
set
C-DIR
"
:gsys :files
"
:gsys :alt2 .c
export
C_DIR
gspcpp -i:gsp :files source.c
Note that the include filenames are enclosed in angle brackets. The pre-
processor first searches
for these files in the directories named with C-DIR
and finds al t2. c. Then, the preprocessor searches in the directories named
with the -i option and finds altl. c.
3-5

Texas Instruments TMS34010 Specifications

General

Brand	Texas Instruments
Model	TMS34010
Category	Computer Hardware
Language	English