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Results tagged with uint256
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user 5549
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Contract returns incorrect uint when it should fail
I would concentrate on your client-test testing methodology.
When I loaded the code into Remix I found it does not compile under 0.4.19 as specified. You must be using a later compiler such as 0.4.2 …
- 55.6k
2
votes
Solidity - preventing negative uint parameters/overflow
Since web3 apparently doesn't require functions with uint parameters to have positive values
Not true. uint is always a positive number, by definition.
I suspect the issue is about how the cont …
- 55.6k
0
votes
Most gas efficient way to check if byte array contains zeroes?
You might find more efficiency if you venture into assembler but the concern that jumps out is the iterative nature of this approach, which is O(n).
When you say "most gas efficient way" you don't say …
- 55.6k
0
votes
Set and Get of a large amount of data
In the example below, there is a dynamic array of numbers and the appendNumber() function just keeps adding to the list. The contract emits an event for every important state change which I strongly r …
- 55.6k
0
votes
Create token exchange by defining decimal values
A decimal symbol is a notation for human interpretation.
Ethereum itself uses 18 decimal places of precision but is, in fact, represented by very large integers. 18 decimals of precision is an emerg …
- 55.6k