From 8694a43cced5e6b11ddd3cc13a8c28f6b3cefddb Mon Sep 17 00:00:00 2001 From: Zack Weinberg Date: Sat, 22 Jan 2000 04:12:52 +0000 Subject: [PATCH] Another test for preprocessor corner cases From-SVN: r31558 --- gcc/testsuite/gcc.dg/lineno.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/lineno.c diff --git a/gcc/testsuite/gcc.dg/lineno.c b/gcc/testsuite/gcc.dg/lineno.c new file mode 100644 index 00000000000..dc5bf818da9 --- /dev/null +++ b/gcc/testsuite/gcc.dg/lineno.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-options "-Wwrite-strings" } */ +/* The purpose of this test is to ensure that line numbers in diagnostics + are accurate after macros whose arguments contain newlines and are + substituted multiple times. The semicolons are on separate lines because + #line can only correct numbering on line boundaries. */ +#define one(x) x +#define two(x) x x +#define four(x) two(x) two(x) + +int +main(void) +{ + char *A; + + A = "text"; /* { dg-warning "discards qualifiers" "case zero" } */ + A = one("text" + "text") + ; /* { dg-warning "discards qualifiers" "case one" } */ + A = two("text" + "text") + ; /* { dg-warning "discards qualifiers" "case two" } */ + A = four("text" + "text") + ; /* { dg-warning "discards qualifiers" "case four" } */ + + return 0; +} -- 2.30.2