diff options
| -rw-r--r-- | include/llvm/ADT/StringExtras.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/llvm/ADT/StringExtras.h b/include/llvm/ADT/StringExtras.h index 1ba60ed114..bf27c4313f 100644 --- a/include/llvm/ADT/StringExtras.h +++ b/include/llvm/ADT/StringExtras.h @@ -129,6 +129,25 @@ static inline unsigned HashString(StringRef Str, unsigned Result = 0) { return Result; } +/// Returns the English suffix for an ordinal integer (-st, -nd, -rd, -th). +static inline StringRef getOrdinalSuffix(unsigned Val) { + // It is critically important that we do this perfectly for + // user-written sequences with over 100 elements. + switch (Val % 100) { + case 11: + case 12: + case 13: + return "th"; + default: + switch (Val % 10) { + case 1: return "st"; + case 2: return "nd"; + case 3: return "rd"; + default: return "th"; + } + } +} + } // End llvm namespace #endif |