simple string operation question

hi all,
i try to put some data into the string "email_data":

static char **email_data = NULL;
email_data = "?subject=CacheErrorInfo%20-%20", errorPageName(err->type),"&body=CacheHost%3A%20",getMyHostname();

now in perl the "," between the single elements would be fine
to add them all to this one string, but i only get
"?subject=CacheErrorInfo%20-%20" into email_data.

do i have to use another operator or is it just not possible
to put errorPageName(err->type) into a string this way?
if so, what type would i have to declare email_data as to
make it work?

thanks in advance!
 Clemens

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