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Move StringRef comparison operators out of class.

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Also, tweak the return type of size().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76588 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-07-21 17:25:46 +00:00
parent 1010c21e4e
commit 7cb6860185
1 changed files with 38 additions and 16 deletions
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54
include/llvm/ADT/StringRef.h
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@ -73,7 +73,14 @@ namespace llvm {
bool empty() const { return Length == 0; }
/// size - Get the string size.
unsigned size() const { return Length; }
size_t size() const { return Length; }
/// equals - Check for string equality, this is more efficient than
/// compare() in when the relative ordering of inequal strings isn't needed.
bool equals(const StringRef &RHS) const {
return (Length == RHS.Length &&
memcmp(Data, RHS.Data, Length) == 0);
}
/// compare - Compare two strings; the result is -1, 0, or 1 if this string
/// is lexicographically less than, equal to, or greater than the \arg RHS.
@ -95,20 +102,6 @@ namespace llvm {
/// @name Operator Overloads
/// @{
bool operator==(const StringRef &RHS) const {
return Length == RHS.Length && memcmp(Data, RHS.Data, Length) == 0;
}
bool operator!=(const StringRef &RHS) const { return !(*this == RHS); }
bool operator<(const StringRef &RHS) const { return compare(RHS) == -1; }
bool operator<=(const StringRef &RHS) const { return compare(RHS) != 1; }
bool operator>(const StringRef &RHS) const { return compare(RHS) == 1; }
bool operator>=(const StringRef &RHS) const { return compare(RHS) != -1; }
char operator[](size_t Index) const {
assert(Index < Length && "Invalid index!");
return Data[Index];
@ -142,12 +135,41 @@ namespace llvm {
/// startswith - Check if this string starts with the given \arg Prefix.
bool startswith(const StringRef &Prefix) const {
return substr(0, Prefix.Length) == Prefix;
return substr(0, Prefix.Length).equals(Prefix);
}
/// @}
};
/// @name StringRef Comparison Operators
/// @{
inline bool operator==(const StringRef &LHS, const StringRef &RHS) {
return LHS.equals(RHS);
}
inline bool operator!=(const StringRef &LHS, const StringRef &RHS) {
return !(LHS == RHS);
}
inline bool operator<(const StringRef &LHS, const StringRef &RHS) {
return LHS.compare(RHS) == -1;
}
inline bool operator<=(const StringRef &LHS, const StringRef &RHS) {
return LHS.compare(RHS) != 1;
}
inline bool operator>(const StringRef &LHS, const StringRef &RHS) {
return LHS.compare(RHS) == 1;
}
inline bool operator>=(const StringRef &LHS, const StringRef &RHS) {
return LHS.compare(RHS) != -1;
}
/// @}
}
#endif