Compilare: main.c: In function 'main': main.c:20:26: warning: passing argument 2 of 'fprintf' makes pointer from integer without a cast [-Wint-conversion] fprintf(outFile, euclid(a,b) ); ^~~~~~ In file included from /usr/include/stdio.h:936:0, from main.c:1: /usr/include/bits/stdio2.h:95:1: note: expected 'const char * restrict' but argument is of type 'int' fprintf (FILE *__restrict __stream, const char *__restrict __fmt, ...) ^~~~~~~ main.c:20:9: warning: format not a string literal and no format arguments [-Wformat-security] fprintf(outFile, euclid(a,b) ); ^~~~~~~ main.c:11:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(infile, "%lld", &a); ^~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:12:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(infile, "%lld", &b); ^~~~~~~~~~~~~~~~~~~~~~~~~~