Login or Register to Ask a Question and Join Our Community


Programming

Help with a function call

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Programming Help with a function call
# 1  
Old 03-04-2007
Help with a function call
Hi, Can anyone help me figure out the problem I'm having with a function call?

I have a header file, which sets an enum:

typedef enum {INFO, WARNING, FATAL} Levels;
int log_event (Levels, char *fmt, ...);

..then the function is called this way:

log_event(INFO, "Message text");

...then the function:

int log_event(int Level, char *string_fmt) {

Every time I try to build this, I get an error, "conflicting types for log_event".

I've tried changing Level to a char, enum, Levels, and everything else I could think of, but no luck.

Can anyone shed some light on this?

-Steve Smilie
# 2  
Old 03-04-2007
why do you have 2 different declarations for log_event() ? they have different "signature" hence the compiler is giving error. Below is a simple example that will compile.. (you can change the function definition)

Code:
typedef enum {INFO, WARNING, FATAL} Levels ;
int log_event(Levels l, char *fmt) ;

int main ( void )  {

  log_event(INFO, "Message text");

  return 0 ;
}


int log_event(Levels l, char *fmt) {
  return 2 ;
}

# 3  
Old 03-05-2007
Thanks!
Thanks for the help. It had me confused there, but now I see what I was doing wrong.

Steve Smilie
# 4  
Old 03-05-2007
Actually, you are using ellipsis argument
"..."

there is no need to change the argument type

try this code, not tested
Code:
#include <stdio.h>
#include <stdarg.h>

void fun(int, char *, ...);

int main()
{
  fun(10, "%s-%s-%s", "1", "message", "2");
  return 0;
}

void fun( int a, char *p, ...)
{
  char *s;
  va_list list;
  va_start(list, p);

  memset(s, '\0', sizeof(s));
  while( *p != '\0' ) {
    s = va_arg(list, char *);
    fprintf(stderr, "%s", s);
    p++;
  }
  va_end(list);

  fprintf(stderr, "%d\n", a);
}

# 5  
Old 03-05-2007
Code
Hi. Thanks for the idea. I'll give this a try!

Will the fprintf function save this output to a file?

-Steve
# 6  
Old 03-05-2007
Quote:
Will the fprintf function save this output to a file?
The above line uses stderr to give the output

use a file handle that was opened;
in the below fprintf to save the information in to a file

Code:
fprintf (fp, <to be saved>);

# 7  
Old 03-05-2007
Thank You
Thanks for the help!

-Steve
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to Call a Function

Hi I have created a function in a Shell Script test.sh function fnTest() { echo "My first Method } I have called this function in my test.sh cat abc.txt | grep "test" echo " test" fnTest But while running the shell script i got the following error: ... (2 Replies)
Discussion started by: nanthagopal
2 Replies

2. Shell Programming and Scripting

After exit from function it should not call other function

Below is my script that is function properly per my conditions but I am facing one problem here that is when one function fails then Iy should not check other functions but it calls the other function too So anyone can help me how could i achieve this? iNOUT i AM GIVING TO THE... (1 Reply)
Discussion started by: rohit22hamirpur
1 Replies

3. Shell Programming and Scripting

Function call

Hi foiks i am unable to find what is wrong in my code mu functionality is to exit from shell when i give 99 but it is not calling function ext Could you please correct me. read option if ; then ext else echo "out" fi function ext { echo "tested 99 and exit... (12 Replies)
Discussion started by: kojo
12 Replies

4. Infrastructure Monitoring

diffrence between method call and function call in perl

Hello, I have a problem with package and name space. require "/Mehran/DSGateEngineLib/general.pl"; use strict; sub System_Status_Main_Service_Status_Intrusion_Prevention { my %idpstatus; my @result; &General_ReadHash("/var/dsg/idp/settings",\%idpstatus); #print... (4 Replies)
Discussion started by: Zaxon
4 Replies

5. Shell Programming and Scripting

Function Call

Hi, I have a string corresponding to a function. How I can call that function without if statement? Thanks in advance. (4 Replies)
Discussion started by: Zaxon
4 Replies

6. Shell Programming and Scripting

Function Call

How we can start a process if doesn't exists before? (1 Reply)
Discussion started by: Zaxon
1 Replies

7. Shell Programming and Scripting

help on function call

hello, when i call function inside awk traitement it doesn't work, i don't have error execution but i don't get result and if i call the function outside awk traitement it work well.. there's something special in awk call function?? here is the example : awk -F "," '{ {first=$1; sec=$2;... (3 Replies)
Discussion started by: kamel.seg
3 Replies

8. Shell Programming and Scripting

function call

hi, can any one help me to correct this function call. awk -F "," '{ {first=$1; sec=$2; tro=$3;quat=$4 } if (tro == "") { $3 = search "$file2" "$first" "$file3" {print $1","$2","$3","$4} } else {print $1","$2","$3 $4}}' $file1 > $file search () { (2 Replies)
Discussion started by: kamel.seg
2 Replies

9. Shell Programming and Scripting

call function

I have a function check_ok in my abc.sh. which return me 1 or 0 . I want to call this fuction through other shell script. this shell also send two parameter to calling function. Can you please tell me how. I am very new in unix. #!/bin/bash date_equal() { sqlplus -silent... (4 Replies)
Discussion started by: Jamil Qadir
4 Replies

10. Shell Programming and Scripting

function call

can I call a function in bash script just as in C++ while do function() done function() thanks, Steffen (3 Replies)
Discussion started by: forever_49ers
3 Replies
Login or Register to Ask a Question