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| author | Jordan Rose <jordan_rose@apple.com> | 2012-09-22 01:24:21 +0000 |
|---|---|---|
| committer | Jordan Rose <jordan_rose@apple.com> | 2012-09-22 01:24:21 +0000 |
| commit | a2df2ba16a94bf20b9202594d01cfbf370c2091a (patch) | |
| tree | 4f54987873c818c325f4e1cc3b00510535cde3e8 | |
| parent | f5091b476c46333ecfcf095cd2e422e9748e9546 (diff) | |
| download | external_llvm-a2df2ba16a94bf20b9202594d01cfbf370c2091a.zip external_llvm-a2df2ba16a94bf20b9202594d01cfbf370c2091a.tar.gz external_llvm-a2df2ba16a94bf20b9202594d01cfbf370c2091a.tar.bz2 | |
Add llvm::getOrdinalSuffix to get the appropriate -st, -nd, -rd, -th suffix.
Used by clang to print parameter indexes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164440 91177308-0d34-0410-b5e6-96231b3b80d8
| -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 1ba60ed..bf27c43 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 |