Use llvm::getOrdinalSuffix to print ordinal numbers in diagnostics.

Just a refactoring of common infrastructure. No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164443 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 17 deletions

diff --git a/lib/Basic/Diagnostic.cpp b/lib/Basic/Diagnostic.cpp
index 8065b2d98f..893eed041f 100644
--- a/lib/Basic/Diagnostic.cpp
+++ b/lib/Basic/Diagnostic.cpp
@@ -15,6 +15,7 @@
 #include "clang/Basic/IdentifierTable.h"
 #include "clang/Basic/PartialDiagnostic.h"
 #include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/CrashRecoveryContext.h"
 #include <cctype>
@@ -515,23 +516,7 @@ static void HandleOrdinalModifier(unsigned ValNo,
 
   // We could use text forms for the first N ordinals, but the numeric
   // forms are actually nicer in diagnostics because they stand out.
-  Out << ValNo;
-
-  // It is critically important that we do this perfectly for
-  // user-written sequences with over 100 elements.
-  switch (ValNo % 100) {
-  case 11:
-  case 12:
-  case 13:
-    Out << "th"; return;
-  default:
-    switch (ValNo % 10) {
-    case 1: Out << "st"; return;
-    case 2: Out << "nd"; return;
-    case 3: Out << "rd"; return;
-    default: Out << "th"; return;
-    }
-  }
+  Out << ValNo << llvm::getOrdinalSuffix(ValNo);
 }