Define arbitrary line numbers for the source lines.
Using the #line directive, you can specify an arbitrary line number at any point.
The compiler then uses that line number for subsequent counts.
#include <stdio.h> main() { printf("A\n"); #line 100 printf("B\n"); printf("C FILE %s LINE %d\n", __FILE__, __LINE__ ); #line 200 printf("D\n"); printf("E\n"); }
A B C FILE line0.c LINE 101 D E