Revision: 55279
http://sourceforge.net/p/brlcad/code/55279
Author: carlmoore
Date: 2013-05-01 18:31:17 +0000 (Wed, 01 May 2013)
Log Message:
-----------
shift the isatty test further up (no point in processing the options if this
fails), and add '< inputfile' to the usage
Modified Paths:
--------------
brlcad/trunk/src/sig/ddisp.c
Modified: brlcad/trunk/src/sig/ddisp.c
===================================================================
--- brlcad/trunk/src/sig/ddisp.c 2013-05-01 18:02:19 UTC (rev 55278)
+++ brlcad/trunk/src/sig/ddisp.c 2013-05-01 18:31:17 UTC (rev 55279)
@@ -47,7 +47,7 @@
void disp_bars(double *buf, int size);
static const char usage[] = "\
-Usage: ddisp [-v -b -p -c -h] [width (512)]\n";
+Usage: ddisp [-v -b -p -c -h] [width (512)] < inputfile\n";
int
main(int argc, char **argv)
@@ -56,6 +56,10 @@
int n, L;
+ if ( isatty(fileno(stdin)) ) {
+ bu_exit(1, "%s", usage );
+ }
+
while ( argc > 1 ) {
if ( BU_STR_EQUAL(argv[1], "-v") ) {
mode = VERT;
@@ -75,9 +79,6 @@
argv++;
}
- if ( isatty(fileno(stdin)) ) {
- bu_exit(1, "%s", usage );
- }
if ( (fbp = fb_open( NULL, fbsize, fbsize )) == FBIO_NULL ) {
bu_exit(2, "Unable to open framebuffer\n");
}
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