/in/foo.c: In function 'a':
/in/foo.c:8:12: error: lvalue required as left operand of assignment
    8 |     if (x%i=0);
      |            ^
/in/foo.c:8:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
    8 |     if (x%i=0);
      |     ^~
/in/foo.c:9:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    9 |         return 0;}
      |         ^~~~~~