Writing a TOTP client in Go
Build a TOTP-based 2FA client in Go using the standard library. Generate time-based one-time passwords like Google Authenticator.
C and C++ Prioritize Performance over Correctness
The meaning of “undefined behavior” has changed significantly since its introduction in the 1980s.
C and C++ Prioritize Performance over Correctness
The meaning of “undefined behavior” has changed significantly since its introduction in the 1980s.
Running commands against every module in a Go multi-module project
I've recently been migrating oapi-codegen to a multi-module project. As part of it I've seen that running an innocuous "test all the packages below this one": go test ./... Does not work any more, as go test will only traverse packages that the current module knows abou...
Slices Package: Clip, Clone, and Compact
Series Here are all the posts in this series about the slices package. Binary Search Clip, Clone, and Compact Compare Contains, Delete, and Equal Introduction In the first post of this series, I discussed the binary search API from the slices package that is now part of the sta...
Interface guards in Go
I love Go’s implicit interfaces. While convenient, they can also introduce subtle bugs unless you’re careful. Types expected to conform to certain interfaces can fluidly add or remove methods. The compiler will only complain if an identifier anticipates an interface,...
Interface guards in Go
I love Go’s implicit interfaces. While convenient, they can also introduce subtle bugs unless you’re careful. Types expected to conform to certain interfaces can fluidly add or remove methods. The compiler will only complain if an identifier anticipates an interface,...
Interface guards in Go
I love Go’s implicit interfaces. While convenient, they can also introduce subtle bugs unless you’re careful. Types expected to conform to certain interfaces can fluidly add or remove methods. The compiler will only complain if an identifier anticipates an interface,...
Interface guards in Go
Use compile-time interface guards to verify type conformity in Go without runtime overhead. Learn the var _ Interface = (*Type)(nil) pattern.
Using the WordStar diamond in 2023
Describes the WordStar diamond, a wonderful set of key bindings from the 1970s, and how you can use it in 2023 on Linux or Windows.