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The problem was with the data types. Unsigned long on my laptop is 8 bytes and I was assuming a 4 byte size. Also, some coding was incorrect.

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:
I am trying to...

#include <iostream>
#include <stdlib.h>
using namespace std;

int main()
{
char *hex_key = "abcdef012345678";
long long key = strtoll( hex_key, NULL, 16 );

cout <<...

The long long int knowledge seems like it will be very helpful along with the unsigned math you showed. The strtoll() I am sure is helpful, I am just not too sure yet what to do with it. Thanks.

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:
Split a 64bit...

I am trying to use a bit vector to determine if a number generated by rand()%8 has been generated yet. I'll mess with it some more in a bit. Thanks.

#include <stdio.h>
int main()
{
unsigned char a,b;
a = 1 + 2 + 4 + 16 + 32 + 64 + 128;
b=1;

while(b<=128)
{
if(a & b)
printf("%d\n", b);

...

This isn't making sense to me. What is a good book or site that explains this?

00001001

---------- Post updated at 03:34 PM ---------- Previous update was at 03:30 PM ----------

How could I translate each binary position in an unsigned char to a corresponding number 1 - 8?

If I enter 9, the output is

Enter an unsigned character: 9
?
9 = 00111001

So, the question mark is because 128 is too big for 1 byte and I am not expecting 00111001 because that is 2^5...

ok, very cool. the ob command is great i'm glad you showed it. i haven't done anything yet, but am feeling better since i saw that the file was empty. i guess i used a write flag when opening at...

/******************************************************************************/
/* Printing an unsigned character in bits */

#include <stdio.h>

void...

I've set fseek to 0, 4, 7, 8 trying to pull one of the first two ints and I've set it as sizeof(acct_info_t), sizeof(acct_info_t) + 7 . . .
I was able to pull info from a txt file I made, but not...

The file is a file of structs and two integers at the beginning. I am trying to pull something from the file, but have not been able to.

#include <stdio.h>
/*
typedef struct
{
char name[40];
int number;
float balance;
} acct_info_t;
*/
int main()
{
FILE *fptr;
fptr = fopen("acct_info",...

ls -l | awk '{ print $6 }'
- this command separates the month column from the ls -l output.
- you could always read that output in to some sort of selection scenario of if statements. i guess that...

-q[rev]
quiet mode; diagnostic output is not printed. A revi-
sion that is not different from the preceding one is
not deposited, unless -f is given.

I...

yeah, its not doing that either.

---------- Post updated at 03:50 PM ---------- Previous update was at 03:49 PM ----------

It displays when used at command prompt, not when in the program.
...

#!/bin/ksh
PATH=/usr/bin:/usr/dt/bin:/usr/openwin/bin:/usr/sbin:/usr/ccs/bin:/usr/ucb:/usr/local/bin:. #BEGIN Find public_html directory.
pub_html_num=`find ~$USER -type d | grep public_html | wc...

sed 's/<\/body>/<A HREF='"$index"'>'"$description"'<\/A>\
<\/body>/' "$index"


This will work from the command prompt, but not from my ksh script.
Why not?


sed: command garbled:...

set -A matched #find referenced files.
for i in ${file_names_html }
do
counter_j=0
for j in...

ci filename

This command displays a message. I don't want it to. How can I keep RCS from doing so?

I would like to know if a command works.

"command" 2>/dev/null

When I issue the command, the error is suppressed. How can I tell whether there was an error?

yes. i'll try it out.

---------- Post updated at 10:28 PM ---------- Previous update was at 10:22 PM ----------

very cool.

cat $reference | awk -v ref=$reference -v desc=$description '/<\/body.*>/ { print "<A HREF="ref">"desc"</A>" } { print }' $reference > tmp && mv tmp $reference

$reference = file location...