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COMMON: Add comparison operators to U32String

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Those operators just compare the numerical value of each character
one by one. This is not idea, but this is better than nothing.
This commit is contained in:
Thierry Crozat 2020-08-30 21:58:13 +01:00 committed by Eugene Sandulenko
parent dd9256502a
commit 9fcc83c09d
2 changed files with 33 additions and 0 deletions
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28
common/ustr.cpp
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@ -198,6 +198,34 @@ bool U32String::operator!=(const char *x) const {
return !equals(x);
}
bool U32String::operator<(const String &x) const {
for (int i = 0 ; i < _size && i < x.size() ; ++i) {
if (_str[i] < x[i])
return true;
else if (_str[i] > x[i])
return false;
}
return (_size < x.size());
}
bool U32String::operator<=(const String &x) const {
return !operator>(x);
}
bool U32String::operator>(const String &x) const {
for (int i = 0 ; i < _size && i < x.size() ; ++i) {
if (_str[i] > x[i])
return true;
else if (_str[i] < x[i])
return false;
}
return (_size > x.size());
}
bool U32String::operator>=(const String &x) const {
return !operator<(x);
}
bool U32String::equals(const U32String &x) const {
if (this == &x || _str == x._str) {
return true;

5
common/ustr.h
View File

@ -136,6 +136,11 @@ public:
bool operator!=(const value_type *x) const;
bool operator!=(const char *x) const;
bool operator<(const String &x) const;
bool operator<=(const String &x) const;
bool operator>(const String &x) const;
bool operator>=(const String &x) const;
/**
* Compares whether two U32String are the same based on memory comparison.
* This does *not* do comparison based on canonical equivalence.