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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #ifndef nsInt64_h__
- #define nsInt64_h__
-
- #include "prlong.h"
- #include "nscore.h"
-
- /**
- * This class encapsulates full 64-bit integer functionality and
- * provides simple arithmetic and conversion operations.
- */
-
- // If you ever decide that you need to add a non-inline method to this
- // class, be sure to change the class declaration to "class NS_BASE
- // nsInt64".
-
- template<class T>
- class nsTInt64
- {
- public: //XXX should be private
- T mValue;
-
- public:
- /**
- * Construct a new 64-bit integer.
- */
- nsTInt64(void) : mValue(LL_ZERO) {
- }
-
- /**
- * Construct a new 64-bit integer from a 32-bit signed integer
- */
- nsTInt64(const PRInt32 aInt32) {
- LL_I2L(mValue, aInt32);
- }
-
- /**
- * Construct a new 64-bit integer from a 32-bit unsigned integer
- */
- nsTInt64(const PRUint32 aUint32) {
- LL_UI2L(mValue, aUint32);
- }
-
- /**
- * Construct a new 64-bit integer from a floating point value.
- */
- nsTInt64(const PRFloat64 aFloat64) {
- LL_D2L(mValue, aFloat64);
- }
-
- /**
- * Construct a new 64-bit integer from a native 64-bit integer
- */
- nsTInt64(const T aInt64) : mValue(aInt64) {
- }
-
- /**
- * Construct a new 64-bit integer from another 64-bit integer
- */
- nsTInt64(const nsTInt64& aObject) : mValue(aObject.mValue) {
- }
-
- // ~nsTInt64(void) -- XXX destructor unnecessary
-
- /**
- * Assign a 64-bit integer to another 64-bit integer
- */
- const nsTInt64& operator =(const nsTInt64& aObject) {
- mValue = aObject.mValue;
- return *this;
- }
-
- /**
- * Convert a 64-bit integer to a signed 32-bit value
- */
- operator PRInt32(void) const {
- PRInt32 result;
- LL_L2I(result, mValue);
- return result;
- }
-
- /**
- * Convert a 64-bit integer to an unsigned 32-bit value
- */
- operator PRUint32(void) const {
- PRUint32 result;
- LL_L2UI(result, mValue);
- return result;
- }
-
- /**
- * Convert a 64-bit integer to a floating point value
- */
- operator PRFloat64(void) const {
- PRFloat64 result;
- LL_L2D(result, mValue);
- return result;
- }
-
- /**
- * Convert a 64-bit integer to a native 64-bit integer.
- */
- operator T() const {
- return mValue;
- }
-
- /**
- * Perform unary negation on a 64-bit integer.
- */
- const nsTInt64 operator -(void) {
- nsTInt64 result;
- LL_NEG(result.mValue, mValue);
- return result;
- }
-
- // Arithmetic operators
-
- /**
- * Increment a 64-bit integer by a 64-bit integer amount.
- */
- nsTInt64& operator +=(const nsTInt64& aObject) {
- LL_ADD(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Decrement a 64-bit integer by a 64-bit integer amount.
- */
- nsTInt64& operator -=(const nsTInt64& aObject) {
- LL_SUB(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Multiply a 64-bit integer by a 64-bit integer amount.
- */
- nsTInt64& operator *=(const nsTInt64& aObject) {
- LL_MUL(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Divide a 64-bit integer by a 64-bit integer amount.
- */
- nsTInt64& operator /=(const nsTInt64& aObject) {
- LL_DIV(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Compute the modulus of a 64-bit integer to a 64-bit value.
- */
- nsTInt64& operator %=(const nsTInt64& aObject) {
- LL_MOD(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Shift a 64-bit integer left.
- */
- nsTInt64& operator <<=(int aCount) {
- LL_SHL(mValue, mValue, aCount);
- return *this;
- }
-
- /**
- * Shift a 64-bit signed integer right.
- */
- nsTInt64& operator >>=(int aCount) {
- LL_SHR(mValue, mValue, aCount);
- return *this;
- }
-
- // Comparison operators
- /**
- * Add two 64-bit integers.
- */
- inline const nsTInt64
- operator +(const nsTInt64& aObject2) const {
- return nsTInt64(*this) += aObject2;
- }
-
- /**
- * Subtract one 64-bit integer from another.
- */
- inline const nsTInt64
- operator -(const nsTInt64& aObject2) const {
- return nsTInt64(*this) -= aObject2;
- }
-
- /**
- * Multiply two 64-bit integers
- */
- inline const nsTInt64
- operator *(const nsTInt64& aObject2) const {
- return nsTInt64(*this) *= aObject2;
- }
-
- /**
- * Divide one 64-bit integer by another
- */
- inline const nsTInt64
- operator /(const nsTInt64& aObject2) const {
- return nsTInt64(*this) /= aObject2;
- }
-
- /**
- * Compute the modulus of two 64-bit integers
- */
- inline const nsTInt64
- operator %(const nsTInt64& aObject2) const {
- return nsTInt64(*this) %= aObject2;
- }
-
- /**
- * Shift left a 64-bit integer
- */
- inline const nsTInt64
- operator <<(int aCount) const {
- return nsTInt64(*this) <<= aCount;
- }
-
- /**
- * Shift right a signed 64-bit integer
- */
- inline const nsTInt64
- operator >>(int aCount) const {
- return nsTInt64(*this) >>= aCount;
- }
-
- /**
- * Determine if two 64-bit integers are equal
- */
- inline PRBool
- operator ==(const nsTInt64& aObject2) const {
- return LL_EQ(mValue, aObject2.mValue);
- }
-
- inline PRBool
- operator ==(T aValue) const {
- return LL_EQ(mValue, aValue);
- }
-
- /**
- * Determine if two 64-bit integers are not equal
- */
- inline PRBool
- operator !=(const nsTInt64& aObject2) const {
- return LL_NE(mValue, aObject2.mValue);
- }
-
- inline PRBool
- operator !=(T aValue) const {
- return LL_NE(mValue, aValue);
- }
-
- /**
- * Perform a bitwise AND of two 64-bit integers
- */
- inline const nsTInt64
- operator &(const nsTInt64& aObject2) const {
- return nsTInt64(*this) &= aObject2;
- }
-
- /**
- * Perform a bitwise OR of two 64-bit integers
- */
- inline const nsTInt64
- operator |(const nsTInt64& aObject2) const {
- return nsTInt64(*this) |= aObject2;
- }
-
- /**
- * Perform a bitwise XOR of two 64-bit integers
- */
- inline const nsTInt64
- operator ^(const nsTInt64& aObject2) const {
- return nsTInt64(*this) ^= aObject2;
- }
-
- // Bitwise operators
-
- /**
- * Compute the bitwise NOT of a 64-bit integer
- */
- const nsTInt64 operator ~(void) const {
- nsTInt64 result;
- LL_NOT(result.mValue, mValue);
- return result;
- }
-
- /**
- * Compute the bitwise AND with another 64-bit integer
- */
- nsTInt64& operator &=(const nsTInt64& aObject) {
- LL_AND(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Compute the bitwise OR with another 64-bit integer
- */
- nsTInt64& operator |=(const nsTInt64& aObject) {
- LL_OR(mValue, mValue, aObject.mValue);
- return *this;
- }
-
- /**
- * Compute the bitwise XOR with another 64-bit integer
- */
- nsTInt64& operator ^=(const nsTInt64& aObject) {
- LL_XOR(mValue, mValue, aObject.mValue);
- return *this;
- }
-
-
- /**
- * Allow doing if (!some_nsInt64)
- */
- PRBool operator!() const {
- return LL_IS_ZERO(mValue);
- }
-
- };
-
- typedef nsTInt64<PRInt64> nsInt64;
- typedef nsTInt64<PRUint64> nsUint64;
-
- /**
- * Determine if one 64-bit integer is strictly greater than another, using signed values
- */
- inline PRBool
- operator >(const nsInt64& aObject1, const nsInt64& aObject2) {
- return LL_CMP(aObject1.mValue, >, aObject2.mValue);
- }
-
- inline PRBool
- operator >(const nsUint64& aObject1, const nsUint64& aObject2) {
- return LL_UCMP(aObject1.mValue, >, aObject2.mValue);
- }
-
- /**
- * Determine if one 64-bit integer is greater than or equal to another, using signed values
- */
- inline PRBool
- operator >=(const nsInt64& aObject1, const nsInt64& aObject2) {
- return ! LL_CMP(aObject1.mValue, <, aObject2.mValue);
- }
-
- inline PRBool
- operator >=(const nsUint64& aObject1, const nsUint64& aObject2) {
- return ! LL_UCMP(aObject1.mValue, <, aObject2.mValue);
- }
-
- /**
- * Determine if one 64-bit integer is strictly less than another, using signed values
- */
- inline PRBool
- operator <(const nsInt64& aObject1, const nsInt64& aObject2) {
- return LL_CMP(aObject1.mValue, <, aObject2.mValue);
- }
-
- inline PRBool
- operator <(const nsUint64& aObject1, const nsUint64& aObject2) {
- return LL_UCMP(aObject1.mValue, <, aObject2.mValue);
- }
-
- /**
- * Determine if one 64-bit integers is less than or equal to another, using signed values
- */
- inline PRBool
- operator <=(const nsInt64& aObject1, const nsInt64& aObject2) {
- return ! LL_CMP(aObject1.mValue, >, aObject2.mValue);
- }
-
- inline PRBool
- operator <=(const nsUint64& aObject1, const nsUint64& aObject2) {
- return ! LL_UCMP(aObject1.mValue, >, aObject2.mValue);
- }
-
- #endif // nsInt64_h__
-