parse and enforce required constraints on #line directives. Right now
we just discard them.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62999 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Preprocessor/line-directive.c b/test/Preprocessor/line-directive.c
new file mode 100644
index 0000000..9b79506
--- /dev/null
+++ b/test/Preprocessor/line-directive.c
@@ -0,0 +1,10 @@
+// RUN: clang -fsyntax-only -verify -pedantic %s
+
+#line 'a' // expected-error {{#line directive requires a positive integer argument}}
+#line 0 // expected-error {{#line directive requires a positive integer argument}}
+#line 2147483648 // expected-warning {{C requires #line number to be less than 2147483648, allowed as extension}}
+#line 42 // ok
+#line 42 'a' // expected-error {{nvalid filename for #line directive}}
+#line 42 "foo/bar/baz.h" // ok
+
+