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Diffstat (limited to 'docs/introduction-to-smart-contracts.rst')
| -rw-r--r-- | docs/introduction-to-smart-contracts.rst | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/docs/introduction-to-smart-contracts.rst b/docs/introduction-to-smart-contracts.rst index c0b596ee..9fda9592 100644 --- a/docs/introduction-to-smart-contracts.rst +++ b/docs/introduction-to-smart-contracts.rst @@ -95,7 +95,7 @@ registering with username and password - all you need is an Ethereum keypair. This contract introduces some new concepts, let us go through them one by one. The line ``address public minter;`` declares a state variable of type address -that is publicly accessible. The ``address`` type is a 160 bit value +that is publicly accessible. The ``address`` type is a 160-bit value that does not allow any arithmetic operations. It is suitable for storing addresses of contracts or keypairs belonging to external persons. The keyword ``public`` automatically generates a function that @@ -220,7 +220,7 @@ only the person holding the keys to the account can transfer money from it. Blocks ====== -One major obstacle to overcome is what in bitcoin terms is called "double-spend attack": +One major obstacle to overcome is what in Bitcoin terms is called "double-spend attack": What happens if two transactions exist in the network that both want to empty an account, a so-called conflict? @@ -277,7 +277,7 @@ of transactions sent from that address, the so-called "nonce"). Apart from the fact whether an account stores code or not, the EVM treats the two types equally, though. -Every account has a persistent key-value store mapping 256 bit words to 256 bit +Every account has a persistent key-value store mapping 256-bit words to 256-bit words called **storage**. Furthermore, every account has a **balance** in @@ -332,7 +332,7 @@ Storage, Memory and the Stack ============================= Each account has a persistent memory area which is called **storage**. -Storage is a key-value store that maps 256 bit words to 256 bit words. +Storage is a key-value store that maps 256-bit words to 256-bit words. It is not possible to enumerate storage from within a contract and it is comparatively costly to read and even more so, to modify storage. A contract can neither read nor write to any storage apart @@ -340,7 +340,7 @@ from its own. The second memory area is called **memory**, of which a contract obtains a freshly cleared instance for each message call. Memory can be -addressed at byte level, but read and written to in 32 byte (256 bit) +addressed at byte level, but read and written to in 32 byte (256-bit) chunks. Memory is more costly the larger it grows (it scales quadratically). @@ -364,7 +364,7 @@ Instruction Set The instruction set of the EVM is kept minimal in order to avoid incorrect implementations which could cause consensus problems. -All instructions operate on the basic data type, 256 bit words. +All instructions operate on the basic data type, 256-bit words. The usual arithmetic, bit, logical and comparison operations are present. Conditional and unconditional jumps are possible. Furthermore, contracts can access relevant properties of the current block |