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Check the value of temp just before calling kill(). According to man 2 kill, kill() kills multiple processes if the pid supplied is not positive.

message needs to be a char array, right?

Hi.

You can use a static local variable to keep track of number of invocations and print the appropriate string. Static variables retain their value across function calls.




int...

When you type a command in the terminal and hit enter, the shell searches for an executable of that name in certain directories like /usr/bin, /sbin, /usr/local/bin etc. The list of these directories...

I was looking at the container_of macro, and this piece of code confuses me a bit:


const typeof( ((type *)0)->member ) *__mptr = (ptr);

Why is it legal to cast 0 (null pointer?) into some...

You declared get_cmd as a function that is supposed to return integer

int get_cmd() /*Return type is int*/
{
....
....
return(array); /*array is not an int*/
}

But then you...

Hi nyekknyakk.:) The compiler errors/warnings are usually helpful in finding the source of bugs.

In your program, these lines strike to me as problematic:

int cmd_str[20];
It seems you have...

It doesn't work because the logic is flawed. Try working out the result in your mind when both nValue and nAdd are 1. The result should be 0b10 (decimal 2), but your code produces just 0b1 (decimal...

Why does the client need to access private data? You might get ideas for better class interface if you post your code here. If there's a very good reason to let the user of the class access private...

And I wanted to see the most bits set in a multiple of 15, as well. Just curious.
4294967295 (ULONG_MAX) is divisible by 15. :)

Unless I'm making some mistake reading the code, control will enter this loop if n has 4 bits set or more than 25 bits set. If this is correct, what is the significance of 4 and 25 here? Why do you...

The first CVector here is the return type of the function; almost all functions have a return type - a function might return int, or float or something else. This one returns an object of type...

Like this:


cout<<array[4][0];

You could store the hex digits in a char array (or better, a linked list) and print out the array in reverse order near the end of the program.

Put a getchar() after every scanf and one at the end, before return.
SourceForge.net: Leaves data in input buffer - cpwiki

"0" is a C-style string, not a char. Use single quotes for char - '0'.

Keep dividing the number by 10 until you get something <= 99999.

Use a larger data type to join the two bytes



unsigned char a=4;
unsigned char b=5;
unsigned short int c=0;
c=a<<8;
c+=b;
printf("\nRPM=%d", c); //Prints 1029

It's because XOR of equal numbers is 0.

Typedefs save us some typing (I guess this makes the latter approach 'better') and are commonly used in projects involving structs.

A class with 2D bool arrays to represent the areas perhaps. I would initialize all elements (seats) of the arrays to 0 and set them to 1 one-by-one as the seats are reserved to indicate they've been...

In that case you need to read about C-style strings bit more to realize that each character of the string can be accessed using an index, as in strng[3] or strng[4] etc.

int main()
{
char c;
c = getchar();
if (c>65&&c<90)
{
c = c +32;
printf("%c",c);
}
else

All modern Operating Systems should have a rename program; you can call it using system().


system("rename foo foo2");

Its an HTTP 302 response redirecting http://google.co.uk/ to http://www.google.co.uk/. libcURL can be set to follow HTTP redirects to the page you actually want.