er.c

#include "cc.h"

unsigned int line, chr;
unsigned int i, s;
char buff[0xff];
char * file;

void write_n( fd_t fd, ct_t n )
{
	unsigned char buff[0xff], i=0xff-1;

	buff[i]='\0';

	goto start;

	while( n )
	{
	start:	
		--i;
		buff[i]='0'+n%10;
		n/=10;
	}

	write( fd, buff+i, 0xff-i );
}

unsigned int init_err( char * s )
{
	unsigned int r;
	line=1;
	chr=0;
	file=s;
	return line;
}

char read_chr( fd_t fd )
{
	char c;

	if( !i || i==s )
	{
		i=0;
		s=read( fd, buff, 0xff );
	}

	if( !s )
		return 0x00;

	c=buff[i];
	++i;

	++chr;
	if( c == '\n' )
	{
		++line;	
		chr=0;
	}

	return c;
}

void err( char * s, char * w, bool_t b )
{
	char * type[2] = { "Warning", "Error" };
	char d[2] = { ':', '\n' };

	write( 2, type[b], strlen(type[b]) );
	write( 2, d, 1 );

	write( 2, file, strlen(file) );
	write( 2, d, 1 );

	write_n( 2, line);
	write( 2, d, 1 );

	write_n( 2, chr);
	write( 2, d, 1 );

	write( 2, s, strlen(s) );
	write( 2, d, 1 );

	if( w )
		write( 2, w, strlen(w) );

	write( 2, d+1, 1 );

	if( b )
		exit(1);
}