Pointer Aliasing Q 1mycxtJs4 - Complete Information & Details

Web Reference: Nov 26, 2025 · Pointer aliasing occurs when different pointer names access the same memory location. The strict aliasing rule in C/C++ means that pointers are assumed not to alias if they point to fundamentally different types. In C and C++ aliasing has to do with what expression types we are allowed to access stored values through. In both C and C++ the standard specifies which expression types are allowed to alias which types. The compiler and optimizer are allowed to assume we follow the aliasing rules strictly, hence the term strict aliasing rule. If we attempt to acc... Here’s a concrete example where aliasing that can change the code’s behavior when it is optimized. We assume that float is 4 bytes long, like int, and so is every pointer.

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