Solidity integer division

1. What is div integer division?
2. What does Uint 256 mean?
3. What is int Solidity?
4. What are addresses in Solidity?
5. What is integer division example?
6. How does integer division differ from regular division?
7. What is Uint in Solidity?
8. What is the maximum size of Uint type in Solidity?
9. Is Bitcoin an ERC20?
10. What is unsigned integer in Solidity?

What is div integer division?

The % (integer divide) operator divides two numbers and returns the integer part of the result. The result returned is defined to be that which would result from repeatedly subtracting the divisor from the dividend while the dividend is larger than the divisor.

What does Uint 256 mean?

An overflow/underflow happens when an arithmetic operation reach the maximum or minimum size of the type. For example if you store your number in the uint256 type, it means your number will be stored in a 256 bits unsigned number ranging from 0 to 2²⁵⁶.

What is int Solidity?

Integers. There are two main Solidity types of integers of differing sizes: int - signed integers. uint - unsigned integers.

What are addresses in Solidity?

In Ethereum and Solidity, an address if of 20 byte value size (160 bits or 40 hex characters). It corresponds to the last 20 bytes of the Keccak-256 hash of the public key. An address is always pre-fixed with 0x as it is represented in hexadecimal format (base 16 notation) (defined explicitly).

What is integer division example?

Division of integers means equal grouping or dividing an integer into a specific number of groups. For example, -6 ÷ 2 means dividing -6 into 2 equal parts, which results in -3.

How does integer division differ from regular division?

Java does integer division, which basically is the same as regular real division, but you throw away the remainder (or fraction). Thus, 7 / 3 is 2 with a remainder of 1. Throw away the remainder, and the result is 2. Integer division can come in very handy.

What is Uint in Solidity?

Unsigned Integers: uint

The uint data type is an unsigned integer, meaning its value must be non-negative. There's also an int data type for signed integers. Note: In Solidity, uint is actually an alias for uint256, a 256-bit unsigned integer.

What is the maximum size of Uint type in Solidity?

An uint is short for uint256 , so it can store 2^256 values - because it's unsigned the maximum value is 2^256-1 (zero needs one space).

Is Bitcoin an ERC20?

One of the most significant Ethereum tokens is known as ERC-20. ... ERC-20 is similar, in some respects, to bitcoin, Litecoin, and any other cryptocurrency; ERC-20 tokens are blockchain-based assets that have value and can be sent and received.

What is unsigned integer in Solidity?

Solidity provides the following two types of integer: Signed integers: Signed integers can hold both negative and positive values. Unsigned integers: Unsigned integers can hold only positive values along with zero. They can also hold negative values apart from positive and zero values.