[Moved] need help is solving a problem with Arrays

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Naveenk.wins

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hi,

i have the following definition in a dev.c
const char *Device_Name_a[4] =
{
"Dev0",
"Dev1",
"Dev2",
"Dev3",
};

and in handle.c i have used the above information like this

extern const char *Device_Name_a[];

char *device = Device_Name_a[0];

This is working fine

I need to replace the above using, get_device_name function.
my goal is get the variable(device name) which is declared globally using get function instead of "char *device = Device_Name_a[0];"

can any one help in how to do this?

Its very urgent i have a release by end of day...
 

I didnt understood....
You need a function that will return those string from the array,or what???
 

hi,

const char *Device_Name_a[4] =
{
"Dev0",
"Dev1",
"Dev2",
"Dev3",
};

const char* get_devicename(unsigned char temp)
{
return(Device_Name_a[ temp ]);
}

in handle.c file

extern const char* get_devicename(unsigned char temp);

local variable:
const unsigned char* devname_p ;

devname_p =get_devicename( 0 );

All i need to check is devnamp_p u should get "Dev0" .

Whats wrong in the above code..
 

I dont think you should have any problems...
Anyway here is how to do it

This code will be in "dev.c" file
Code: 
//dev.c

const char *Device_Name_a[4] =
{
"Dev0",
"Dev1",
"Dev2",
"Dev3",
};

const char* get_devicename(unsigned char temp)
{
   return(Device_Name_a[temp]);
}

And this code will be in "handle.c" file
Code: 
#include "stdio.h"
#include "stdlib.h"

const char* get_devicename(unsigned char temp);

int main(void)
{
	
    const char * devname_p = get_devicename(0);
    puts(devname_p);
	system("pause");
	return 0;
}

Good Luck
 

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