gcc/testsuite/gcc.dg/missing-header-fixit-1.c

   1 /* Example of a fix-it hint that adds a #include directive,
   2    adding them to the top of the file, given that there is no
   3    pre-existing #include.  */
   4
   5 /* This is padding (to avoid the generated patch containing DejaGnu
   6    directives).  */
   7
   8 /* { dg-options "-fdiagnostics-generate-patch" } */
   9
  10 void test (int i, int j)
  11 {
  12   printf ("%i of %i\n", i, j); /* { dg-warning "implicit declaration" } */
  13   /* { dg-message "include '<stdio.h>' or provide a declaration of 'printf'" "" { target *-*-* } .-1 } */
  14 }
  15
  16 /* Verify the output from -fdiagnostics-generate-patch.
  17    We expect the patch to begin with a header, containing this
  18    source filename, via an absolute path.
  19    Given the path, we can only capture it via regexps.  */
  20 /* { dg-regexp "\\-\\-\\- .*" } */
  21 /* { dg-regexp "\\+\\+\\+ .*" } */
  22 /* Use #if 0/#endif rather than comments, to allow the text to contain
  23    a comment.  */
  24 #if 0
  25 { dg-begin-multiline-output "" }
  26 @@ -1,3 +1,4 @@
  27 +#include <stdio.h>
  28  /* Example of a fix-it hint that adds a #include directive,
  29     adding them to the top of the file, given that there is no
  30     pre-existing #include.  */
  31 { dg-end-multiline-output "" }
  32 #endif
  33
  34 /* FIXME: should we attempt to skip leading comments when determining the
  35    insertion location?
  36    Similarly, should we attempt to be within single-inclusion guards, etc?  */