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https://github.com/metabarcoding/obitools4.git
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Eric Coissac
8c7017a99d
- Update obioptions.Version from "Release 4.4.29" to "/v/ Release v5" - Update version.txt from 4.29 → .30 (automated by Makefile)
21 lines
1.1 KiB
Markdown
21 lines
1.1 KiB
Markdown
# `obiutils` Package Functional Overview
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The `obiutils` package provides two core utility functions for low-level and numerical operations in Go:
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- **`InPlaceToLower([]byte) []byte`**
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Converts all ASCII uppercase letters in a byte slice to lowercase *in-place*, returning the modified slice.
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- Non-alphabetic bytes remain unchanged.
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- Memory-efficient: modifies input directly (no allocation of new slice).
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- **`Make2DNumericArray[T any](rows, cols int, zeroed bool) Matrix[T]`**
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Generates a generic 2D numeric array (`Matrix`) of type `T`, supporting any comparable/numeric Go type.
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- Parameters: number of rows, columns, and whether to initialize with zero values (`true`) or default `T` (e.g., 0 for int).
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- Uses Go generics (`[T any]`) for type safety and flexibility.
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Both functions are thoroughly unit-tested in `*_test.go`, covering edge cases:
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- Empty/nil inputs (`InPlaceToLower`)
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- Various dimensions and zero-initialization modes (`Make2DNumericArray`)
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Tests use `reflect.DeepEqual` for structural comparison and subtests via `t.Run`.
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The package assumes a custom type alias: `type Matrix[T any] [][]T`.
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