gcc/testsuite/gcc.dg/missing-header-fixit-3.c


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/* Example of a fix-it hint that adds a #include directive,
   adding them to the top of the file, given that there is no
   pre-existing #include.  */

/* { dg-options "-fdiagnostics-show-caret -fdiagnostics-show-line-numbers" } */

void test (int i, int j)
{
  printf ("%i of %i\n", i, j); /* { dg-warning "implicit declaration" } */
  /* { dg-message "include '<stdio.h>' or provide a declaration of 'printf'" "" { target *-*-* } .-1 } */
#if 0
/* { dg-begin-multiline-output "" }
9 |   printf ("%i of %i\n", i, j);
  |   ^~~~~~
   { dg-end-multiline-output "" } */
/* { dg-begin-multiline-output "" }
+++ |+#include <stdio.h>
  1 | /* Example of a fix-it hint that adds a #include directive,
....
  9 |   printf ("%i of %i\n", i, j);
    |   ^~~~~~
   { dg-end-multiline-output "" } */
#endif
}