Memory location
A memory location is an identifiable address or storage region in computer memory where data or instructions can reside or be accessed.
Rust in Action: Systems programming concepts and techniques
A memory address is a numeric location identifying where data or instructions reside in computer memory.
- How it is used
- Uses numeric byte locations to connect Rust pointers and variable addresses with a program’s virtual address space.
- How deep it goes
- Defines byte addresses, distinguishes typed pointers, and explains page-based translation and caching; defers environment-specific architecture details.
- Examples
- Prints an i64 pointer and addresses of known values; contrasts those observations with a failing byte-by-byte memory scan.
- What you can do after
- Diagnose/debug with it by inspecting printed addresses and recognizing why arbitrary address reads can trigger segmentation faults.
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Python How-To
A memory address is a location in computer memory associated with an object while it exists.
- How it is used
- Uses memory locations to inspect object identity, shared mutable state, method receivers, and copying behavior.
- How deep it goes
- Explains stable identity through focused Python examples, then connects it to __new__, __init__, shallow copies, and mutable defaults.
- Examples
- Demonstrates dict views, shared default lists, self during construction, and tags shared by shallow-copied Task objects.
- What you can do after
- Diagnose shared-object bugs by comparing is or id() and distinguish accidental aliasing from equal values.
C++ Concurrency in Action, Second Edition
A memory location in C++ is a storage unit consisting of an object of scalar type or a sequence of adjacent bit-fields.
- How it is used
- Uses memory locations to determine when accesses by multiple threads require synchronization.
- How deep it goes
- Defines locations through object and bit-field layout, then explains data-race conditions; defers atomic ordering details.
- Examples
- Shows a struct with adjacent bit-fields and a zero-length separator, plus shared-location thread accesses.
- What you can do after
- Evaluate whether concurrent accesses to a memory location require ordering to avoid a data race.
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Related concepts
- pointerused by · A pointer is a value that refers to a memory location or another object, enabling indirect access to it.
- atomic operationused by · An atomic operation accesses or updates shared state as an indivisible action with respect to concurrent operations.
- idmeasured by · id() is a Python built-in function that returns an integer identifying an object during its lifetime.
- address spacepart of · An address space is the set or range of addresses recognized within a system or addressing scheme for identifying locations or entities.
- store instructionused by · A store instruction copies a value from a processor register to a specified memory location.
- stackhas part · A stack is a data structure that adds and removes elements at one end, following last-in, first-out order.
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