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but why dont we do another way around like


sem_init(&shared.full, 0, BUFF_SIZE);
sem_init(&shared.empty, 0, 0);

I think there is another reason for that but I can not get it...

typedef struct {
int buf[BUFF_SIZE]; /* shared var */
int in; /* buf[in%BUFF_SIZE] is the first empty slot */
int out; /* buf[out%BUFF_SIZE] is the first full...

If I declare


char* sche = "Sep 29, 19:34";

Then I can extract each char from "sche" by iterating through "sche.However if I try to use strtok() on schelike following


char delim[] =...

int main()
{

char* date1="Dec 29, 8:30";
char* date2="Dec 28, 7:30";
char* year =" 2009";
strcat(date1,year);
strcat(date2,year);
return 0;
}

char* sche = "Sep 29, 19:34";




char sche[] = "Sep 29, 19:34";


I would like to ask that 2 lines of codes above are the same meaning in C.What is the meaning of the first code and the...

No iam sorry it is my fault. Thanks

char array[] = "Sep 29, 19:34";

i use strlen() to find the length of array


red 429 %array.out
length of array is 3
red30 %

The length should be 13. I dont understand why. I need an...

Thanks for that. To get each month from above array,I use array[i].Is there any other ways to get a month from this array. Can i use
*(arr+i).The compiler gives me an error for this

I want to declare an array to hold 12 month from Jan to Dec. I am coding like this


char arr[] ={
"Jan", "Feb",
"Mar", "Apr",
"May", "Jun",
"Jul", "Aug",
"Sep",...

@slingerland3g: >='a' and <='z' can help me.
@King Mir : what do you mean pass char as an integer. Could you explain pls
Thanks all

That is what i have just coded


#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
int main ( int argc , char* argv[])
{
char* s = "CPROGRAMMING";
int i;

If we have a string like "CPROGRAMMING"
How can we check if this string contains only
1. Capital letters
2. No digits
Thanks

Thanks a lot

Thanks for your anwsers. I am clear now

ok now i am using malloc


input = (char*)( malloc(sizeof(char))

Now the problem is on malloc(sizeof(char) because it does not make sure the bounds of the input unless we have to declare a...

4. fgets ( input ,43, stdin ) ;

I declare 43 bytes because i want to make sure that there is enough for the string from stdin. If i made a small change at line 2


char input[43];

It will...

There is another question I want to ask about the fgets() in C. Here is my code



#include <string.h>
#include <stdio.h>
1.int main (int argc, char *argv[]){
2. char* input;
3. char* arg;...

Thanks a lot it is clear now
There is another question I want to ask about the fgets() in C. Here is my code


#include <string.h>
#include <stdio.h>
1.int main (int argc, char *argv[]){...

Thanks for all your answers.
For the problem above, according to laserlight

I made a small change

printf("%s\n",*a[1]);
But still get the error.

This error still occurs when I try an...

thanks for your help but i still feel confused if i use


printf("%s\n",&a[1]);

it will give me


ello, World!

There is code in C


int main(void)
{
char *a = "Hello, World!";
printf("%s\n",&a[1]);
return 0;
}

Thanks for your answers all.They are very useful to me know.
Tuan

There are codes about pthread in C


1.#include <pthread.h>
2.#include <stdlib.h>
3.#include <unistd.h>
4.void *thread_function(void *arg) {
5. printf("Thread says hi!\n");
6. ...

I have 2 different directories. The first has 2 sub-folders A and B. The second as 2 sub-folders C and D and script named "script".There is a code of "script" to list 2 sub-folders C and D

...

hi
How can i list files which are only folders in Unix
Tuan