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this pointer

The object's address, which C++ passes to every member function as a hidden first argument - in rdi, rcx, x0 or a0.

this is a prvalue pointer to the object a non-static member function was called on, passed as the first integer argument (rdi on System V, rcx on Microsoft x64, x0 on ARM64, a0 on RISC-V); it is not stored in the object.

Examples

  • Calling p.area() on x86-64 Linux passes &p in rdi as this.

See also

member function nullptr
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