compiler error on external interrupt

[Wilson Antonieti]

Hi folks,

I´ve got a problem with compilation a sw. I´m using PIC18f452 and error occur on external interrupt 0. A piece of my sw described below:

...
ext_int_edge(0,h_to_l); enable_interrupts(int_ext);
enable_interrupts(global);
clear_lcd();


while(true)
{
comand_lcd(0x80);
printf(write_lcd,"Waiting int. ");
delay_ms(1000);
}

#int_ext
void int_ext_isr()
{
clear();
comand_lcd(0x80);
printf(write_lcd,"Received!!");
receive_data();
decoder_data();
}


Compiler show "A numeric expression must appear here" on "int_ext" line.

Well, i really can´t understand why occur this error. Any ideas? Any help?
Thanks, Wileti

[newguy]

The two things that come to mind are:

1. That error usually pops up if there is a problem with the code ABOVE the line that the compiler flagged. Check for missing (), {}, ;

2. The other thing I can think of is that I've never seen an interrupt declaration below the main{}. Try moving the #int_EXT declaration to before main{}.