Improve function decl merging, patch by Oliver Hunt!

llvm-svn: 44253

1 files changed, 29 insertions, 0 deletions

diff --git a/clang/test/Sema/predefined-function.c b/clang/test/Sema/predefined-function.c
new file mode 100644
index 00000000000..bca25fb995b
--- /dev/null
+++ b/clang/test/Sema/predefined-function.c
@@ -0,0 +1,29 @@
+// RUN: clang -fsyntax-only -verify -pedantic %s
+ 
+int foo();
+int foo()
+{
+	return 0;	
+}
+
+int bar();
+int bar(int i) // expected-error {{previous definition is here}}
+{
+	return 0;
+}
+int bar() // expected-error {{redefinition of 'bar'}}
+{
+	return 0;
+}
+
+int foobar(int); // expected-error {{previous definition is here}}
+int foobar() // expected-error {{redefinition of 'foobar'}}
+{
+	return 0;
+}
+
+int wibble(); // expected-error {{previous definition is here}}
+float wibble() // expected-error {{redefinition of 'wibble'}}
+{
+	return 0.0f;
+}