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Added polymorphic == and < operators.

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This commit is contained in:
John Wiegley 2007-08-03 21:21:57 +00:00
parent 41039518a0
commit ca131ea6e8
1 changed files with 14 additions and 6 deletions
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20
src/numerics/value.h
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@ -36,8 +36,10 @@
* *
* @brief Abstract dynamic type representing various numeric types. * @brief Abstract dynamic type representing various numeric types.
* *
* A value_t object can be one of many types, and can change its type * A value_t object can be one of many types, and changes its type
* dynamically based on how it is used. * dynamically based on how it is used. For example, if you assign
* the number 10 to a value object, it's internal type will be
* INTEGER.
*/ */
#ifndef _VALUE_H #ifndef _VALUE_H
#define _VALUE_H #define _VALUE_H
@ -346,13 +348,19 @@ public:
} }
/** /**
* Comparison operators. * Comparison operators. Values can be compared to other values
*/ */
bool operator==(const value_t& val) const; bool operator==(const value_t& val) const;
bool operator<(const value_t& val) const; bool operator<(const value_t& val) const;
#if 0
bool operator>(const value_t& val) const; template <typename T>
#endif bool operator==(const T& amt) const {
return *this == value_t(amt);
}
template <typename T>
bool operator<(const T& amt) const {
return *this < value_t(amt);
}
/** /**
* Binary arithmetic operators. * Binary arithmetic operators.