Question

What are Lvalues and Rvalues in C++?

Answer 1

$\huge\bold{Answer}$

__________________________________

Lvalue :-

It is something that identifies an object. Lvalue is the variable on the left side of the expression.

Rvalue :-

It is something that assigned to a variable that is on left side. Rvalue is the value on the right hand side of the expression.

Eg:-

$<font color=blue>int x; // x is an lvalue </p><p>int* p; // *p is an lvalue </p><p>int a[100]; // a[42] is an lvalue; equivalent to *(a+42) </p><p>// note: a itself is also an lvalue </p><p>struct S { int m; }; </p><p>struct S s; // s and s.m are lvalues </p><p>struct S* p2 = &s; // p2->m is an lvalue; equivalent to (*p2).m </p><p>// note: p2 and *p2 are also lvalues$

Hope it helps you