ANSI-C function prototype help 1

[smartsarath2003]

Hai,
I am trying to implement the fallowing code.But I am getting only one letter output "H". Its just trying to return a string from a function, but I think the problem is with function prototype declaration to return a srting value.
Can any one help me with this please!!!


#include <stdio.h>

char _stdcall _export Read_SerialPort(void)

{
char data[100]="Hello";
return *data;
}

void main ()
{
char result[100]="";
*result= Read_SerialPort();
}

Thnaks in advance....

 

[sedj]

You need to change :

char _stdcall _export Read_SerialPort(void)

to :

char* _stdcall _export Read_SerialPort(void)

because you are just declaring to return a single char, instead of a char pointer.

Also, you will need to malloc() the char* you return in that function, else you will get unexpected results. Obviouslt your calling function will need to free() the pointer to avoid memory leaks.

--------------------------------------------------
Free Java/J2EE Database Connection Pooling Software

http://www.primrose.org.uk