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Use NULL instead of 0 when setting up pointer.

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This commit is contained in:
Kevin Lo 2010-08-10 06:58:12 +00:00
parent 449918b191
commit f5f8c098c7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=211132
1 changed files with 8 additions and 8 deletions
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16
usr.bin/indent/indent.c
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@ -199,21 +199,21 @@ main(int argc, char **argv)
* look thru args (if any) for changes to defaults
*/
if (argv[i][0] != '-') {/* no flag on parameter */
if (input == 0) { /* we must have the input file */
if (input == NULL) { /* we must have the input file */
in_name = argv[i]; /* remember name of input file */
input = fopen(in_name, "r");
if (input == 0) /* check for open error */
if (input == NULL) /* check for open error */
err(1, "%s", in_name);
continue;
}
else if (output == 0) { /* we have the output file */
else if (output == NULL) { /* we have the output file */
out_name = argv[i]; /* remember name of output file */
if (strcmp(in_name, out_name) == 0) { /* attempt to overwrite
* the file */
errx(1, "input and output files must be different");
}
output = fopen(out_name, "w");
if (output == 0) /* check for create error */
if (output == NULL) /* check for create error */
err(1, "%s", out_name);
continue;
}
@ -222,9 +222,9 @@ main(int argc, char **argv)
else
set_option(argv[i]);
} /* end of for */
if (input == 0)
if (input == NULL)
input = stdin;
if (output == 0) {
if (output == NULL) {
if (troff || input == stdin)
output = stdout;
else {
@ -1223,11 +1223,11 @@ bakcopy(void)
/* re-open backup file as the input file */
input = fopen(bakfile, "r");
if (input == 0)
if (input == NULL)
err(1, "%s", bakfile);
/* now the original input file will be the output */
output = fopen(in_name, "w");
if (output == 0) {
if (output == NULL) {
unlink(bakfile);
err(1, "%s", in_name);
}