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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/cpp/line3.c
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Diffstat (limited to 'gcc/testsuite/gcc.dg/cpp/line3.c')
-rw-r--r--gcc/testsuite/gcc.dg/cpp/line3.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/cpp/line3.c b/gcc/testsuite/gcc.dg/cpp/line3.c
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index 000000000..4b40e4a6a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/cpp/line3.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 'const' qualifier" "case zero" } */
+ A = one("text" /* { dg-warning "discards 'const' qualifier" "case one" } */
+ "text")
+ ;
+ A = two("text" /* { dg-warning "discards 'const' qualifier" "case two" } */
+ "text")
+ ;
+ A = four("text" /* { dg-warning "discards 'const' qualifier" "case four" } */
+ "text")
+ ;
+
+ return 0;
+}