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authorDerek Schuff <dschuff@chromium.org>2012-09-25 17:30:25 -0700
committerDerek Schuff <dschuff@chromium.org>2012-09-25 18:01:23 -0700
commita27c28b1427dc2082ab2b31efdbb25f9fde31b61 (patch)
tree6f3ff025f542ca3f66a1a01cbf239aeef7784511 /include/llvm/ADT/StringExtras.h
parent0e15ffd8cb1ec642eddb96380660914ff2b007e1 (diff)
parentbc4021f31eaa97ee52655828da3e3de14a39e4a6 (diff)
Merge commit 'bc4021f31eaa97ee52655828da3e3de14a39e4a6'
Conflicts: lib/MC/MCAssembler.cpp lib/Target/ARM/ARMISelDAGToDAG.cpp lib/Target/Mips/MipsInstrFPU.td lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp lib/Target/X86/X86ISelLowering.h
Diffstat (limited to 'include/llvm/ADT/StringExtras.h')
-rw-r--r--include/llvm/ADT/StringExtras.h21
1 files changed, 20 insertions, 1 deletions
diff --git a/include/llvm/ADT/StringExtras.h b/include/llvm/ADT/StringExtras.h
index 36df5acadb..bf27c4313f 100644
--- a/include/llvm/ADT/StringExtras.h
+++ b/include/llvm/ADT/StringExtras.h
@@ -21,7 +21,7 @@ namespace llvm {
template<typename T> class SmallVectorImpl;
/// hexdigit - Return the hexadecimal character for the
-/// given number \arg X (which should be less than 16).
+/// given number \p X (which should be less than 16).
static inline char hexdigit(unsigned X, bool LowerCase = false) {
const char HexChar = LowerCase ? 'a' : 'A';
return X < 10 ? '0' + X : HexChar + X - 10;
@@ -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