If I have a code like this, what are the potential problems do you see?
My questions are:
a) Since the string literal which is already a constant read only data (cannot be modifiable), should I need to explicitly mention const in the return type of this function?
b) Also, what this "char* const", const pointer serves here? what happens if it is just normal pointer "char*"?
c) I guess, this version of returning the string literal is re-entrant. May I know how?
d) Can I use reference here in the return type?
I have two string returning function in ESQL/C
char *segment_name(lbuffer)
char *lbuffer;
{.....
and
char *get_bpdvalue(f_name)
char *f_name;
{......
both declared above main()
char *get_bpdvalue();
char *segment_name();
my problem is segment_name works on sprintf and strcpy... (5 Replies)
hi all,
my requirement is to create a thread by calling another function.
i.e i dont call pthread_create directly from main, but by calling another function (createThd - below ), from main.
Example:
void *thread_function(void *arg) { /* thread function */
int i;
rc =... (3 Replies)
Hi all,
I am very new to BASH shell programming. I need to return an integer from a function to the caller function. I did this:
but it keeps giving me wrong return:
Can someone help me out here, please?
Thanks (2 Replies)
hi
how can I return multiple values from a C function. I tried the following:
#include <stdio.h>
void foo(int id, char *first_name, char *last_name)
{
/*
this is just an example to illustrate my problem... real code makes
use of the "id" parameter.
*/
first_name = (char... (8 Replies)
Hi All
In my script, I can call on several functions. I have a logging function that is called by any of these functions. What I would like is some way of identifying which function I am using and pass this to the log function as some parameter.
Is there some built in command or way of... (3 Replies)
I am working on a C/Unix application from last 2 years which communicates with other systems using proprietary format of my client. We have a function written in C which returns integer, which is response from other system to the request message initiated by my system. This return value is then... (1 Reply)
I am working on the application in which I have to fetch values from the database and paste in url and send it to portal.
table=get_result("SELECT serialno,cas,Mode,FLC,TLC,location,CompName,CompCode,FG,FC,DispNo,TruckNo,LWbill,RRGPN,INVNO,DCN,RQTY,DQTY,SQTY,DDATE,RDATE,SDATE,TTIME FROM... (1 Reply)
H friends,
As we know, a function returns a value and that value is saved somwhere. like
int Sum( int x, int y )
{
return x + y;
}
Total = Sum( 10, 20 );
The value 30 is saved in variable Total.
Now the question is, what int value does the function main return, and where is it... (5 Replies)
Hi All,
I am using malloc function for allocating dynamic memory.
When I am using below code on Linux server its working fine, but When I am trying the same code on HP UNIX server its returning NULL.
below is a fragment of code in which it is giving problem.
tmp = (format_tree... (4 Replies)
Discussion started by: Taher Saifuddin
4 Replies
LEARN ABOUT SUNOS
wstring
wstring(3C) Standard C Library Functions wstring(3C)NAME
wstring, wscasecmp, wsncasecmp, wsdup, wscol - Process Code string operations
SYNOPSIS
#include <widec.h>
int wscasecmp(const wchar_t *s1, const wchar_t *s2);
int wsncasecmp(const wchar_t *s1, const wchar_t *s2, int n);
wchar_t *wsdup(const wchar_t *s);
int wscol(const wchar_t *s);
DESCRIPTION
These functions operate on Process Code strings terminated by wchar_t null characters. During appending or copying, these routines do not
check for an overflow condition of the receiving string. In the following, s, s1, and s2 point to Process Code strings terminated by a
wchar_t null.
wscasecmp(), wsncasecmp()
The wscasecmp() function compares its arguments, ignoring case, and returns an integer greater than, equal to, or less than 0, depending
upon whether s1 is lexicographically greater than, equal to, or less than s2. It makes the same comparison but compares at most n Process
Code characters. The four Extended Unix Code (EUC) codesets are ordered from lowest to highest as 0, 2, 3, 1 when characters from different
codesets are compared.
wsdup()
The wsdup() function returns a pointer to a new Process Code string, which is a duplicate of the string pointed to by s. The space for the
new string is obtained using malloc(3C). If the new string cannot be created, a null pointer is returned.
wscol()
The wscol() function returns the screen display width (in columns) of the Process Code string s.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO malloc(3C), string(3C), wcstring(3C), attributes(5)SunOS 5.10 29 Dec 1996 wstring(3C)