C# Span<T>: A Guide to Type-Safe Memory Management and Performance Optimization
By
NDepend
If you only eat one bagel today, this is the bagel.
Summary
This article explains C# Span<T> and ReadOnlySpan<T>, introduced in C# 7.2 (2017) and fully supported in .NET Core. These structures provide type-safe, efficient access to contiguous memory regions across stack, heap, and unmanaged memory. Span<T> eliminates runtime overhead when creating substrings or subarrays from existing strings and arrays, making it a key tool for performance optimization in C# memory management.
Key quotes
· 3 pulledSpan<T> lets you work with sequences of elements on the thread's stack, the object's heap, or even unmanaged memory, all through the same API.
Span<T> removes the runtime overhead of creating substrings or subarrays from existing strings and arrays.
Span in C# is at the heart of memory management. It optimizes performance by representing contiguous regions of arbitrary memory.
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