no effect of indent command

[tapas_mishra]

Following is the code

#include <stdio.h>
struct key
{
char *word;
int count;
} keytab[] =
{
"auto", 0,
"break", 0, "case", 0, "char", 0, "const", 0, "continue", 0, "default", 0,
/* ... */
"unsigned", 0, "void", 0, "volatile", 0, "while", 0};

int
main ()
{
char s[] = { 'a', 'e', 'i', 'o', 'u', '\0' };
int d;
d = s[0] - '0';
printf ("%d", d);
}

I did

indent -kr temp.c
there seemed no effect on indentation of code.
Then I tried

indent -gnu temp.c
Still it looks like

#include <stdio.h>
struct key
{
char *word;
int count;
} keytab[] =
{
"auto", 0,
"break", 0, "case", 0, "char", 0, "const", 0, "continue", 0, "default", 0,
/* ... */
"unsigned", 0, "void", 0, "volatile", 0, "while", 0};

int
main ()
{
char s[] = { 'a', 'e', 'i', 'o', 'u', '\0' };
int d;
d = s[0] - '0';
printf ("%d", d);
}

and then I tried

indent -linux temp.c


#include <stdio.h>
struct key {
char *word;
int count;
} keytab[] = {
"auto", 0,
"break", 0, "case", 0, "char", 0, "const", 0, "continue", 0,
"default", 0,
/* ... */
"unsigned", 0, "void", 0, "volatile", 0, "while", 0};

int main()
{
char s[] = { 'a', 'e', 'i', 'o', 'u', '\0' };
int d;
d = s[0] - '0';
printf("%d", d);
}
I do not see any noticeable difference in any of the three methods I tried.Am I doing some thing wrong?

[Queue29]

Use the -o outfile flag. Also iirc there's -w which will overwrite the source files.

Otherwise it just prints the output to stdout.

[matthew.ball]

You might want to read this (http://en.wikipedia.org/wiki/Indent_style) then.