Data Structures perguntas e respostas de entrevista
Question: How memory is reserved using a declaration statement ?Answer: Memory is reserved using data type in the variable declaration. A programming language implementation has predefined sizes for its data types.For example, in C# the declaration int i; will reserve 32 bits for variable i. A pointer declaration reserves memory for the address or the pointer variable, but not for the data that it will point to. The memory for the data pointed by a pointer has to be allocated at runtime. The memory reserved by the compiler for simple variables and for storing pointer address is allocated on the stack, while the memory allocated for pointer referenced data at runtime is allocated on the heap. |
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