strcat problem

[alternativa]

Hi,
I have a following problem: I'm creating a list and one of the fields
should contain the date. Firstly I ask the user for the year, month and
day and then I'd like to collect all this data in one field. To do this
I tried to concatenate those 3 numbers into one using strcat. A piece
of code is as follows

/*function to enter the date*/
char * date (void)
{
long year; /* it must of a long type */
long month; /* because of some other reasons*/
long day;
char *str1;
char *str2;
char *str3;
char *str4;

/*here are the functions collecting the data from the input*/

str1 = strcat (year,'-');
str2 = strcat (str1, month);
str3 = strcat (str2,'-');
str4 = strcat (str3,day);

return str4;
}

I think the result should be "year-month-day".. Why it doesn't work?

 

[Flash Gordon]

alternativa wrote:

How many times do you have to post the same thing? This is a news group
not a chat room, it can take a couple of days for people to see your
post and respond, so multiple postings just serve to annoy the people
from whom you want help.

Hi,
I have a following problem: I'm creating a list and one of the fields
should contain the date. Firstly I ask the user for the year, month and
day and then I'd like to collect all this data in one field. To do this
I tried to concatenate those 3 numbers into one using strcat. A piece
of code is as follows

You are using strcat, so include the standard header that declares it:

/*function to enter the date*/
char * date (void)
{
long year; /* it must of a long type */
long month; /* because of some other reasons*/
long day;
char *str1;
char *str2;
char *str3;
char *str4;

/*here are the functions collecting the data from the input*/

str1 = strcat (year,'-');

<snip>

Then the compiler will bitch about the above line. Read your text book
for who strcat works. Hint, is year a pointer to a string?

 

[alternativa]

Thanks for your help and sorry for this multiplied posts Something
was wrong with google groups,I guess.

 

[Default User]

Flash Gordon wrote:

How many times do you have to post the same thing? This is a news
group not a chat room, it can take a couple of days for people to see
your post and respond, so multiple postings just serve to annoy the
people from whom you want help.

It should be noted that Google was hosed up over the weekend, resulting
in many problems, including extreme delay in sending messages.



Brian

 

[Richard Bos]

Thanks for your help and sorry for this multiplied posts Something
was wrong with google groups,I guess.

Lots is wrong with Google Broken Groups, including the lack of quoting.

Richard

 

[Ico]

It should be noted that Google was hosed up over the weekend, resulting
in many problems, including extreme delay in sending messages.

Ok, I was not aware of that problem, my apologies to the people I flamed
today about multiple postings. (Although, using google is still a bad
excuse)

Ico