This is neat: with sufficiently careful struct layout, I can pack an opcode word into 8 bytes, be zerocopy-friendly, still have non-terrible ergonomics, and keep all of the fields correctly aligned!
![Screenshot of Rust code reading
use zerocopy::{IntoBytes, Unalign};
#[derive(Copy, Clone, IntoBytes)]
#[repr(u8)]
pub enum Opcode {
Add(Unalign<BinaryData>),
Sub(Unalign<BinaryData>),
Mul(Unalign<BinaryData>),
Div(Unalign<BinaryData>),
Atan(Unalign<BinaryData>),
Neg(Unalign<UnaryData>),
Square(Unalign<UnaryData>),
Sin(Unalign<UnaryData>),
Cos(Unalign<UnaryData>),
Tan(Unalign<UnaryData>),
}
#[derive(Copy, Clone, IntoBytes)]
#[repr(u8)]
pub enum BinaryData {
RegReg { out: u8, lhs: u8, rhs: u8, _pad: [u8; 3] },
RegImm { out: u8, lhs: u8, rhs: Unalign<f32> },
ImmReg { out: u8, rhs: u8, lhs: Unalign<f32> },
}
#[derive(Copy, Clone, IntoBytes)]
#[repr(u8)]
pub enum UnaryData {
Reg { out: u8, arg: u8, _pad: [u8; 4] },
}
fn main() {
assert_eq!(std::mem::size_of::<Opcode>(), 8);
}](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:sgqw2zixdcjtjjhrm4bw64ny/bafkreigechnlis7c7tqlxdd5kdpnf6ctfdcxsmcypkddqtt3qyrkxz66se)
September 10, 2026 at 5:57 PM
This is neat: with sufficiently careful struct layout, I can pack an opcode word into 8 bytes, be zerocopy-friendly, still have non-terrible ergonomics, and keep all of the fields correctly aligned!
Text files force you to read from start to finish. BinaryStream can hop to any byte with BytePosition, read just what it needs, and write typed values like Int32 or Boolean directly.
https://documentation.xojo.com/api/files/binarystream.html
#Xojo #BinaryData #FileIO #DesktopDevelopment
https://documentation.xojo.com/api/files/binarystream.html
#Xojo #BinaryData #FileIO #DesktopDevelopment
August 25, 2026 at 3:31 PM
Text files force you to read from start to finish. BinaryStream can hop to any byte with BytePosition, read just what it needs, and write typed values like Int32 or Boolean directly.
https://documentation.xojo.com/api/files/binarystream.html
#Xojo #BinaryData #FileIO #DesktopDevelopment
https://documentation.xojo.com/api/files/binarystream.html
#Xojo #BinaryData #FileIO #DesktopDevelopment
It's nerd blog Thursday (which I just made up): Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving performance and reducing allocations in your .NET applications.
www.meziantou.net
January 22, 2026 at 2:41 PM
It's nerd blog Thursday (which I just made up): Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
Learn how to create BinaryData from MemoryStream without copying memory, improving perf and reducing allocations in your .NET apps.
CSV import tutorial shows how to add images or binary data in CSV files for Odoo. Learn efficient methods using XML and Python scripts to process and import image data. #Odoo #CSVImport #Images #BinaryData #Tutorial
Add images or binary data in csv file: Odoo Tutorial
In this tutorial, we explain how to add images or binary data in csv file for your Odoo system. We guide you through the entire process by demonstrating how to upload CSV files, integrate image paths and binary data, and use XML records and Python scripts to ensure that your CSV file data is successfully imported into Odoo. Moreover, we use descriptive examples, clear code samples, and step-by-step instructions with active voice and smooth transitions.
teguhteja.id
March 12, 2025 at 1:46 PM
CSV import tutorial shows how to add images or binary data in CSV files for Odoo. Learn efficient methods using XML and Python scripts to process and import image data. #Odoo #CSVImport #Images #BinaryData #Tutorial
Use `binaryData` in a ConfigMap to inject raw bytes—like truststores or binary keys—without UTF-8 errors. `kubectl` base64-encodes values for API validation while keeping https://www.valtersit.com/vault/ingesting-binary-data-into-configmaps-using-base64-encoding-ca6cb8/
September 12, 2026 at 12:20 PM
Use `binaryData` in a ConfigMap to inject raw bytes—like truststores or binary keys—without UTF-8 errors. `kubectl` base64-encodes values for API validation while keeping https://www.valtersit.com/vault/ingesting-binary-data-into-configmaps-using-base64-encoding-ca6cb8/
Found a neat way of creating `BinaryData` from a `MemoryStream` with a zero-copy operation:
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
![Code snippet:
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var dataViaStreamCopy = BinaryData.FromStream(stream);
// this does not require a memory copy
var dataViaBufferAccess = new BinaryData(stream.GetBuffer().AsMemory(0, (int)stream.Position));](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:zwllhl7oby7grbs3vf2zbeox/bafkreidblcl2jdd35atv4rtt4hgxfkgskinwzgttvhbzp4xgoo6w4nbytm)
October 23, 2025 at 10:48 AM
Found a neat way of creating `BinaryData` from a `MemoryStream` with a zero-copy operation:
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
```
var stream = new MemoryStream();
stream.Write([1, 2, 3]); // some data is written to the memory stream
stream.Flush();
// this requires a memory copy
var […]
[Original post on hachyderm.io]
Add ability to convert BinaryData into a dictionary or a dynamic type (113477) https://github.com/dotnet/runtime/issues/113477
Add ability to convert BinaryData into a dictionary or a dynamic type · Issue #113477 · dotnet/runtime
There are cases where you are dealing with a BinaryData instance which contains some data following a known JSON schema under a given property, e.g. { "pets": [ { "id": 1, "name": "Buddy", "type": ...
github.com
March 13, 2025 at 4:12 PM
Add ability to convert BinaryData into a dictionary or a dynamic type (113477) https://github.com/dotnet/runtime/issues/113477
`binaryData = new char*[fileSize];` isn't good, noted
December 2, 2024 at 6:56 PM
`binaryData = new char*[fileSize];` isn't good, noted
My first question/answer on Stack Overflow in years. Basically my way of blogging technical stuff without a blog.
Using LIKE operator in Entity Framework Core on BinaryData properties
https://stackoverflow.com/q/79930144/21698
#dotnet
Using LIKE operator in Entity Framework Core on BinaryData properties
https://stackoverflow.com/q/79930144/21698
#dotnet
Using LIKE operator in Entity Framework Core on BinaryData properties
I'm storing JSON data in SQL Server 2022 in a varbinary(max) column. I'm aware that SQL Server 2025 offers a proper JSON data type, but I'm working with SQL Server 2022. I'm using EF Core to access...
stackoverflow.com
April 22, 2026 at 2:34 PM
My first question/answer on Stack Overflow in years. Basically my way of blogging technical stuff without a blog.
Using LIKE operator in Entity Framework Core on BinaryData properties
https://stackoverflow.com/q/79930144/21698
#dotnet
Using LIKE operator in Entity Framework Core on BinaryData properties
https://stackoverflow.com/q/79930144/21698
#dotnet
A new differentiable framework learns binary variable structures, achieving identifiability up to Markov equivalence. The preprint will be presented at an ML conf in 2024. https://getnews.me/new-differentiable-framework-expands-structure-learning-for-binary-data/ #structurelearning #binarydata
September 29, 2025 at 7:21 AM
A new differentiable framework learns binary variable structures, achieving identifiability up to Markov equivalence. The preprint will be presented at an ML conf in 2024. https://getnews.me/new-differentiable-framework-expands-structure-learning-for-binary-data/ #structurelearning #binarydata
Next is Red memory w/ crucial information data resides.
"In computer science Red memory a self-balancing binary search that uses a color bit to keep balanced. The color bit depicted red or black. Red memory known for fast storage & retrieval ordered information."
#Redmemory #Binary #Binarydata
"In computer science Red memory a self-balancing binary search that uses a color bit to keep balanced. The color bit depicted red or black. Red memory known for fast storage & retrieval ordered information."
#Redmemory #Binary #Binarydata
February 16, 2025 at 11:54 PM
Next is Red memory w/ crucial information data resides.
"In computer science Red memory a self-balancing binary search that uses a color bit to keep balanced. The color bit depicted red or black. Red memory known for fast storage & retrieval ordered information."
#Redmemory #Binary #Binarydata
"In computer science Red memory a self-balancing binary search that uses a color bit to keep balanced. The color bit depicted red or black. Red memory known for fast storage & retrieval ordered information."
#Redmemory #Binary #Binarydata
⚡️ Zero-Copy BinaryData from MemoryStream in .NET
🏷️ #devdigest #dotnet #net
https://devdigest.today/goto/5242
🏷️ #devdigest #dotnet #net
https://devdigest.today/goto/5242
Zero-copy BinaryData creation from MemoryStream in .NET - Gérald Barré
Learn how to create BinaryData from MemoryStream without copying memory, improving performance and reducing allocations in your .NET applications.
devdigest.today
January 5, 2026 at 12:30 PM
⚡️ Zero-Copy BinaryData from MemoryStream in .NET
🏷️ #devdigest #dotnet #net
https://devdigest.today/goto/5242
🏷️ #devdigest #dotnet #net
https://devdigest.today/goto/5242
