// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023. | |
// SPDX-License-Identifier: MIT | |
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SafeCast.sol) | |
// This file was procedurally generated from scripts/generate/templates/SafeCast.js. | |
pragma solidity ^0.8.0; | |
/** | |
* @dev Wrappers over Solidity's uintXX/intXX casting operators with added overflow | |
* checks. | |
* | |
* Downcasting from uint256/int256 in Solidity does not revert on overflow. This can | |
* easily result in undesired exploitation or bugs, since developers usually | |
* assume that overflows raise errors. `SafeCast` restores this intuition by | |
* reverting the transaction when such an operation overflows. | |
* | |
* Using this library instead of the unchecked operations eliminates an entire | |
* class of bugs, so it's recommended to use it always. | |
* | |
* Can be combined with {SafeMath} and {SignedSafeMath} to extend it to smaller types, by performing | |
* all math on `uint256` and `int256` and then downcasting. | |
*/ | |
library SafeCast { | |
/** | |
* @dev Returns the downcasted uint248 from uint256, reverting on | |
* overflow (when the input is greater than largest uint248). | |
* | |
* Counterpart to Solidity's `uint248` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 248 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint248(uint256 value) internal pure returns (uint248) { | |
require(value <= type(uint248).max, "SafeCast: value doesn't fit in 248 bits"); | |
return uint248(value); | |
} | |
/** | |
* @dev Returns the downcasted uint240 from uint256, reverting on | |
* overflow (when the input is greater than largest uint240). | |
* | |
* Counterpart to Solidity's `uint240` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 240 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint240(uint256 value) internal pure returns (uint240) { | |
require(value <= type(uint240).max, "SafeCast: value doesn't fit in 240 bits"); | |
return uint240(value); | |
} | |
/** | |
* @dev Returns the downcasted uint232 from uint256, reverting on | |
* overflow (when the input is greater than largest uint232). | |
* | |
* Counterpart to Solidity's `uint232` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 232 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint232(uint256 value) internal pure returns (uint232) { | |
require(value <= type(uint232).max, "SafeCast: value doesn't fit in 232 bits"); | |
return uint232(value); | |
} | |
/** | |
* @dev Returns the downcasted uint224 from uint256, reverting on | |
* overflow (when the input is greater than largest uint224). | |
* | |
* Counterpart to Solidity's `uint224` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 224 bits | |
* | |
* _Available since v4.2._ | |
*/ | |
function toUint224(uint256 value) internal pure returns (uint224) { | |
require(value <= type(uint224).max, "SafeCast: value doesn't fit in 224 bits"); | |
return uint224(value); | |
} | |
/** | |
* @dev Returns the downcasted uint216 from uint256, reverting on | |
* overflow (when the input is greater than largest uint216). | |
* | |
* Counterpart to Solidity's `uint216` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 216 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint216(uint256 value) internal pure returns (uint216) { | |
require(value <= type(uint216).max, "SafeCast: value doesn't fit in 216 bits"); | |
return uint216(value); | |
} | |
/** | |
* @dev Returns the downcasted uint208 from uint256, reverting on | |
* overflow (when the input is greater than largest uint208). | |
* | |
* Counterpart to Solidity's `uint208` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 208 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint208(uint256 value) internal pure returns (uint208) { | |
require(value <= type(uint208).max, "SafeCast: value doesn't fit in 208 bits"); | |
return uint208(value); | |
} | |
/** | |
* @dev Returns the downcasted uint200 from uint256, reverting on | |
* overflow (when the input is greater than largest uint200). | |
* | |
* Counterpart to Solidity's `uint200` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 200 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint200(uint256 value) internal pure returns (uint200) { | |
require(value <= type(uint200).max, "SafeCast: value doesn't fit in 200 bits"); | |
return uint200(value); | |
} | |
/** | |
* @dev Returns the downcasted uint192 from uint256, reverting on | |
* overflow (when the input is greater than largest uint192). | |
* | |
* Counterpart to Solidity's `uint192` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 192 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint192(uint256 value) internal pure returns (uint192) { | |
require(value <= type(uint192).max, "SafeCast: value doesn't fit in 192 bits"); | |
return uint192(value); | |
} | |
/** | |
* @dev Returns the downcasted uint184 from uint256, reverting on | |
* overflow (when the input is greater than largest uint184). | |
* | |
* Counterpart to Solidity's `uint184` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 184 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint184(uint256 value) internal pure returns (uint184) { | |
require(value <= type(uint184).max, "SafeCast: value doesn't fit in 184 bits"); | |
return uint184(value); | |
} | |
/** | |
* @dev Returns the downcasted uint176 from uint256, reverting on | |
* overflow (when the input is greater than largest uint176). | |
* | |
* Counterpart to Solidity's `uint176` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 176 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint176(uint256 value) internal pure returns (uint176) { | |
require(value <= type(uint176).max, "SafeCast: value doesn't fit in 176 bits"); | |
return uint176(value); | |
} | |
/** | |
* @dev Returns the downcasted uint168 from uint256, reverting on | |
* overflow (when the input is greater than largest uint168). | |
* | |
* Counterpart to Solidity's `uint168` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 168 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint168(uint256 value) internal pure returns (uint168) { | |
require(value <= type(uint168).max, "SafeCast: value doesn't fit in 168 bits"); | |
return uint168(value); | |
} | |
/** | |
* @dev Returns the downcasted uint160 from uint256, reverting on | |
* overflow (when the input is greater than largest uint160). | |
* | |
* Counterpart to Solidity's `uint160` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 160 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint160(uint256 value) internal pure returns (uint160) { | |
require(value <= type(uint160).max, "SafeCast: value doesn't fit in 160 bits"); | |
return uint160(value); | |
} | |
/** | |
* @dev Returns the downcasted uint152 from uint256, reverting on | |
* overflow (when the input is greater than largest uint152). | |
* | |
* Counterpart to Solidity's `uint152` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 152 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint152(uint256 value) internal pure returns (uint152) { | |
require(value <= type(uint152).max, "SafeCast: value doesn't fit in 152 bits"); | |
return uint152(value); | |
} | |
/** | |
* @dev Returns the downcasted uint144 from uint256, reverting on | |
* overflow (when the input is greater than largest uint144). | |
* | |
* Counterpart to Solidity's `uint144` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 144 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint144(uint256 value) internal pure returns (uint144) { | |
require(value <= type(uint144).max, "SafeCast: value doesn't fit in 144 bits"); | |
return uint144(value); | |
} | |
/** | |
* @dev Returns the downcasted uint136 from uint256, reverting on | |
* overflow (when the input is greater than largest uint136). | |
* | |
* Counterpart to Solidity's `uint136` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 136 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint136(uint256 value) internal pure returns (uint136) { | |
require(value <= type(uint136).max, "SafeCast: value doesn't fit in 136 bits"); | |
return uint136(value); | |
} | |
/** | |
* @dev Returns the downcasted uint128 from uint256, reverting on | |
* overflow (when the input is greater than largest uint128). | |
* | |
* Counterpart to Solidity's `uint128` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 128 bits | |
* | |
* _Available since v2.5._ | |
*/ | |
function toUint128(uint256 value) internal pure returns (uint128) { | |
require(value <= type(uint128).max, "SafeCast: value doesn't fit in 128 bits"); | |
return uint128(value); | |
} | |
/** | |
* @dev Returns the downcasted uint120 from uint256, reverting on | |
* overflow (when the input is greater than largest uint120). | |
* | |
* Counterpart to Solidity's `uint120` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 120 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint120(uint256 value) internal pure returns (uint120) { | |
require(value <= type(uint120).max, "SafeCast: value doesn't fit in 120 bits"); | |
return uint120(value); | |
} | |
/** | |
* @dev Returns the downcasted uint112 from uint256, reverting on | |
* overflow (when the input is greater than largest uint112). | |
* | |
* Counterpart to Solidity's `uint112` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 112 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint112(uint256 value) internal pure returns (uint112) { | |
require(value <= type(uint112).max, "SafeCast: value doesn't fit in 112 bits"); | |
return uint112(value); | |
} | |
/** | |
* @dev Returns the downcasted uint104 from uint256, reverting on | |
* overflow (when the input is greater than largest uint104). | |
* | |
* Counterpart to Solidity's `uint104` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 104 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint104(uint256 value) internal pure returns (uint104) { | |
require(value <= type(uint104).max, "SafeCast: value doesn't fit in 104 bits"); | |
return uint104(value); | |
} | |
/** | |
* @dev Returns the downcasted uint96 from uint256, reverting on | |
* overflow (when the input is greater than largest uint96). | |
* | |
* Counterpart to Solidity's `uint96` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 96 bits | |
* | |
* _Available since v4.2._ | |
*/ | |
function toUint96(uint256 value) internal pure returns (uint96) { | |
require(value <= type(uint96).max, "SafeCast: value doesn't fit in 96 bits"); | |
return uint96(value); | |
} | |
/** | |
* @dev Returns the downcasted uint88 from uint256, reverting on | |
* overflow (when the input is greater than largest uint88). | |
* | |
* Counterpart to Solidity's `uint88` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 88 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint88(uint256 value) internal pure returns (uint88) { | |
require(value <= type(uint88).max, "SafeCast: value doesn't fit in 88 bits"); | |
return uint88(value); | |
} | |
/** | |
* @dev Returns the downcasted uint80 from uint256, reverting on | |
* overflow (when the input is greater than largest uint80). | |
* | |
* Counterpart to Solidity's `uint80` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 80 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint80(uint256 value) internal pure returns (uint80) { | |
require(value <= type(uint80).max, "SafeCast: value doesn't fit in 80 bits"); | |
return uint80(value); | |
} | |
/** | |
* @dev Returns the downcasted uint72 from uint256, reverting on | |
* overflow (when the input is greater than largest uint72). | |
* | |
* Counterpart to Solidity's `uint72` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 72 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint72(uint256 value) internal pure returns (uint72) { | |
require(value <= type(uint72).max, "SafeCast: value doesn't fit in 72 bits"); | |
return uint72(value); | |
} | |
/** | |
* @dev Returns the downcasted uint64 from uint256, reverting on | |
* overflow (when the input is greater than largest uint64). | |
* | |
* Counterpart to Solidity's `uint64` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 64 bits | |
* | |
* _Available since v2.5._ | |
*/ | |
function toUint64(uint256 value) internal pure returns (uint64) { | |
require(value <= type(uint64).max, "SafeCast: value doesn't fit in 64 bits"); | |
return uint64(value); | |
} | |
/** | |
* @dev Returns the downcasted uint56 from uint256, reverting on | |
* overflow (when the input is greater than largest uint56). | |
* | |
* Counterpart to Solidity's `uint56` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 56 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint56(uint256 value) internal pure returns (uint56) { | |
require(value <= type(uint56).max, "SafeCast: value doesn't fit in 56 bits"); | |
return uint56(value); | |
} | |
/** | |
* @dev Returns the downcasted uint48 from uint256, reverting on | |
* overflow (when the input is greater than largest uint48). | |
* | |
* Counterpart to Solidity's `uint48` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 48 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint48(uint256 value) internal pure returns (uint48) { | |
require(value <= type(uint48).max, "SafeCast: value doesn't fit in 48 bits"); | |
return uint48(value); | |
} | |
/** | |
* @dev Returns the downcasted uint40 from uint256, reverting on | |
* overflow (when the input is greater than largest uint40). | |
* | |
* Counterpart to Solidity's `uint40` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 40 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint40(uint256 value) internal pure returns (uint40) { | |
require(value <= type(uint40).max, "SafeCast: value doesn't fit in 40 bits"); | |
return uint40(value); | |
} | |
/** | |
* @dev Returns the downcasted uint32 from uint256, reverting on | |
* overflow (when the input is greater than largest uint32). | |
* | |
* Counterpart to Solidity's `uint32` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 32 bits | |
* | |
* _Available since v2.5._ | |
*/ | |
function toUint32(uint256 value) internal pure returns (uint32) { | |
require(value <= type(uint32).max, "SafeCast: value doesn't fit in 32 bits"); | |
return uint32(value); | |
} | |
/** | |
* @dev Returns the downcasted uint24 from uint256, reverting on | |
* overflow (when the input is greater than largest uint24). | |
* | |
* Counterpart to Solidity's `uint24` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 24 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toUint24(uint256 value) internal pure returns (uint24) { | |
require(value <= type(uint24).max, "SafeCast: value doesn't fit in 24 bits"); | |
return uint24(value); | |
} | |
/** | |
* @dev Returns the downcasted uint16 from uint256, reverting on | |
* overflow (when the input is greater than largest uint16). | |
* | |
* Counterpart to Solidity's `uint16` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 16 bits | |
* | |
* _Available since v2.5._ | |
*/ | |
function toUint16(uint256 value) internal pure returns (uint16) { | |
require(value <= type(uint16).max, "SafeCast: value doesn't fit in 16 bits"); | |
return uint16(value); | |
} | |
/** | |
* @dev Returns the downcasted uint8 from uint256, reverting on | |
* overflow (when the input is greater than largest uint8). | |
* | |
* Counterpart to Solidity's `uint8` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 8 bits | |
* | |
* _Available since v2.5._ | |
*/ | |
function toUint8(uint256 value) internal pure returns (uint8) { | |
require(value <= type(uint8).max, "SafeCast: value doesn't fit in 8 bits"); | |
return uint8(value); | |
} | |
/** | |
* @dev Converts a signed int256 into an unsigned uint256. | |
* | |
* Requirements: | |
* | |
* - input must be greater than or equal to 0. | |
* | |
* _Available since v3.0._ | |
*/ | |
function toUint256(int256 value) internal pure returns (uint256) { | |
require(value >= 0, "SafeCast: value must be positive"); | |
return uint256(value); | |
} | |
/** | |
* @dev Returns the downcasted int248 from int256, reverting on | |
* overflow (when the input is less than smallest int248 or | |
* greater than largest int248). | |
* | |
* Counterpart to Solidity's `int248` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 248 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt248(int256 value) internal pure returns (int248 downcasted) { | |
downcasted = int248(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 248 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int240 from int256, reverting on | |
* overflow (when the input is less than smallest int240 or | |
* greater than largest int240). | |
* | |
* Counterpart to Solidity's `int240` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 240 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt240(int256 value) internal pure returns (int240 downcasted) { | |
downcasted = int240(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 240 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int232 from int256, reverting on | |
* overflow (when the input is less than smallest int232 or | |
* greater than largest int232). | |
* | |
* Counterpart to Solidity's `int232` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 232 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt232(int256 value) internal pure returns (int232 downcasted) { | |
downcasted = int232(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 232 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int224 from int256, reverting on | |
* overflow (when the input is less than smallest int224 or | |
* greater than largest int224). | |
* | |
* Counterpart to Solidity's `int224` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 224 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt224(int256 value) internal pure returns (int224 downcasted) { | |
downcasted = int224(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 224 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int216 from int256, reverting on | |
* overflow (when the input is less than smallest int216 or | |
* greater than largest int216). | |
* | |
* Counterpart to Solidity's `int216` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 216 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt216(int256 value) internal pure returns (int216 downcasted) { | |
downcasted = int216(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 216 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int208 from int256, reverting on | |
* overflow (when the input is less than smallest int208 or | |
* greater than largest int208). | |
* | |
* Counterpart to Solidity's `int208` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 208 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt208(int256 value) internal pure returns (int208 downcasted) { | |
downcasted = int208(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 208 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int200 from int256, reverting on | |
* overflow (when the input is less than smallest int200 or | |
* greater than largest int200). | |
* | |
* Counterpart to Solidity's `int200` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 200 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt200(int256 value) internal pure returns (int200 downcasted) { | |
downcasted = int200(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 200 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int192 from int256, reverting on | |
* overflow (when the input is less than smallest int192 or | |
* greater than largest int192). | |
* | |
* Counterpart to Solidity's `int192` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 192 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt192(int256 value) internal pure returns (int192 downcasted) { | |
downcasted = int192(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 192 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int184 from int256, reverting on | |
* overflow (when the input is less than smallest int184 or | |
* greater than largest int184). | |
* | |
* Counterpart to Solidity's `int184` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 184 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt184(int256 value) internal pure returns (int184 downcasted) { | |
downcasted = int184(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 184 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int176 from int256, reverting on | |
* overflow (when the input is less than smallest int176 or | |
* greater than largest int176). | |
* | |
* Counterpart to Solidity's `int176` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 176 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt176(int256 value) internal pure returns (int176 downcasted) { | |
downcasted = int176(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 176 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int168 from int256, reverting on | |
* overflow (when the input is less than smallest int168 or | |
* greater than largest int168). | |
* | |
* Counterpart to Solidity's `int168` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 168 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt168(int256 value) internal pure returns (int168 downcasted) { | |
downcasted = int168(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 168 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int160 from int256, reverting on | |
* overflow (when the input is less than smallest int160 or | |
* greater than largest int160). | |
* | |
* Counterpart to Solidity's `int160` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 160 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt160(int256 value) internal pure returns (int160 downcasted) { | |
downcasted = int160(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 160 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int152 from int256, reverting on | |
* overflow (when the input is less than smallest int152 or | |
* greater than largest int152). | |
* | |
* Counterpart to Solidity's `int152` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 152 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt152(int256 value) internal pure returns (int152 downcasted) { | |
downcasted = int152(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 152 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int144 from int256, reverting on | |
* overflow (when the input is less than smallest int144 or | |
* greater than largest int144). | |
* | |
* Counterpart to Solidity's `int144` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 144 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt144(int256 value) internal pure returns (int144 downcasted) { | |
downcasted = int144(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 144 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int136 from int256, reverting on | |
* overflow (when the input is less than smallest int136 or | |
* greater than largest int136). | |
* | |
* Counterpart to Solidity's `int136` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 136 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt136(int256 value) internal pure returns (int136 downcasted) { | |
downcasted = int136(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 136 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int128 from int256, reverting on | |
* overflow (when the input is less than smallest int128 or | |
* greater than largest int128). | |
* | |
* Counterpart to Solidity's `int128` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 128 bits | |
* | |
* _Available since v3.1._ | |
*/ | |
function toInt128(int256 value) internal pure returns (int128 downcasted) { | |
downcasted = int128(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 128 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int120 from int256, reverting on | |
* overflow (when the input is less than smallest int120 or | |
* greater than largest int120). | |
* | |
* Counterpart to Solidity's `int120` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 120 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt120(int256 value) internal pure returns (int120 downcasted) { | |
downcasted = int120(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 120 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int112 from int256, reverting on | |
* overflow (when the input is less than smallest int112 or | |
* greater than largest int112). | |
* | |
* Counterpart to Solidity's `int112` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 112 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt112(int256 value) internal pure returns (int112 downcasted) { | |
downcasted = int112(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 112 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int104 from int256, reverting on | |
* overflow (when the input is less than smallest int104 or | |
* greater than largest int104). | |
* | |
* Counterpart to Solidity's `int104` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 104 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt104(int256 value) internal pure returns (int104 downcasted) { | |
downcasted = int104(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 104 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int96 from int256, reverting on | |
* overflow (when the input is less than smallest int96 or | |
* greater than largest int96). | |
* | |
* Counterpart to Solidity's `int96` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 96 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt96(int256 value) internal pure returns (int96 downcasted) { | |
downcasted = int96(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 96 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int88 from int256, reverting on | |
* overflow (when the input is less than smallest int88 or | |
* greater than largest int88). | |
* | |
* Counterpart to Solidity's `int88` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 88 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt88(int256 value) internal pure returns (int88 downcasted) { | |
downcasted = int88(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 88 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int80 from int256, reverting on | |
* overflow (when the input is less than smallest int80 or | |
* greater than largest int80). | |
* | |
* Counterpart to Solidity's `int80` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 80 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt80(int256 value) internal pure returns (int80 downcasted) { | |
downcasted = int80(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 80 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int72 from int256, reverting on | |
* overflow (when the input is less than smallest int72 or | |
* greater than largest int72). | |
* | |
* Counterpart to Solidity's `int72` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 72 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt72(int256 value) internal pure returns (int72 downcasted) { | |
downcasted = int72(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 72 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int64 from int256, reverting on | |
* overflow (when the input is less than smallest int64 or | |
* greater than largest int64). | |
* | |
* Counterpart to Solidity's `int64` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 64 bits | |
* | |
* _Available since v3.1._ | |
*/ | |
function toInt64(int256 value) internal pure returns (int64 downcasted) { | |
downcasted = int64(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 64 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int56 from int256, reverting on | |
* overflow (when the input is less than smallest int56 or | |
* greater than largest int56). | |
* | |
* Counterpart to Solidity's `int56` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 56 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt56(int256 value) internal pure returns (int56 downcasted) { | |
downcasted = int56(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 56 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int48 from int256, reverting on | |
* overflow (when the input is less than smallest int48 or | |
* greater than largest int48). | |
* | |
* Counterpart to Solidity's `int48` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 48 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt48(int256 value) internal pure returns (int48 downcasted) { | |
downcasted = int48(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 48 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int40 from int256, reverting on | |
* overflow (when the input is less than smallest int40 or | |
* greater than largest int40). | |
* | |
* Counterpart to Solidity's `int40` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 40 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt40(int256 value) internal pure returns (int40 downcasted) { | |
downcasted = int40(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 40 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int32 from int256, reverting on | |
* overflow (when the input is less than smallest int32 or | |
* greater than largest int32). | |
* | |
* Counterpart to Solidity's `int32` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 32 bits | |
* | |
* _Available since v3.1._ | |
*/ | |
function toInt32(int256 value) internal pure returns (int32 downcasted) { | |
downcasted = int32(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 32 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int24 from int256, reverting on | |
* overflow (when the input is less than smallest int24 or | |
* greater than largest int24). | |
* | |
* Counterpart to Solidity's `int24` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 24 bits | |
* | |
* _Available since v4.7._ | |
*/ | |
function toInt24(int256 value) internal pure returns (int24 downcasted) { | |
downcasted = int24(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 24 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int16 from int256, reverting on | |
* overflow (when the input is less than smallest int16 or | |
* greater than largest int16). | |
* | |
* Counterpart to Solidity's `int16` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 16 bits | |
* | |
* _Available since v3.1._ | |
*/ | |
function toInt16(int256 value) internal pure returns (int16 downcasted) { | |
downcasted = int16(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 16 bits"); | |
} | |
/** | |
* @dev Returns the downcasted int8 from int256, reverting on | |
* overflow (when the input is less than smallest int8 or | |
* greater than largest int8). | |
* | |
* Counterpart to Solidity's `int8` operator. | |
* | |
* Requirements: | |
* | |
* - input must fit into 8 bits | |
* | |
* _Available since v3.1._ | |
*/ | |
function toInt8(int256 value) internal pure returns (int8 downcasted) { | |
downcasted = int8(value); | |
require(downcasted == value, "SafeCast: value doesn't fit in 8 bits"); | |
} | |
/** | |
* @dev Converts an unsigned uint256 into a signed int256. | |
* | |
* Requirements: | |
* | |
* - input must be less than or equal to maxInt256. | |
* | |
* _Available since v3.0._ | |
*/ | |
function toInt256(uint256 value) internal pure returns (int256) { | |
// Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive | |
require(value <= uint256(type(int256).max), "SafeCast: value doesn't fit in an int256"); | |
return int256(value); | |
} | |
} | |