function arguments declaration

Hi,

I have encountered the following code:

File - aFile.h

void aFunction(char*, char*, int);


File aFile.c

.....

void aFunction(SomeText1, SomeText2, SomeInt)
char SomeText1, SomeText2;
int SomeInt;
{
      ...function body
}  

I am not used with such code.
What confuses me is the declaration of the three argument variables, outside the function body .
I was used with prototyping the function in an .h file, then defining it in the .c file.

Can you please help.

Thanks.