C Tutorial/Preprocessor/FILE LINE

__FILE__: indicate the file name

<source lang="cpp">#include <stdio.h> main() {

   printf("C FILE %s LINE %d\n", __FILE__, __LINE__ );

}</source>

C FILE FILEindicatethefilename0.c LINE 6

__LINE__: indeicate the current line number,

<source lang="cpp">#include <stdio.h> main() {

   printf("C FILE %s LINE %d\n", __FILE__, __LINE__ );

}</source>

C FILE LINEindeicatethecurrentlinenumber0.c LINE 7