Where in memory or data structure are value-type data usually stored?

Values of data types passed by value (for example, structures in Swift or primitive types in C) are usually stored on the stack. This is because the stack provides fast access and automatic management of the lifetime of such values. Unlike reference types, which are stored on the heap and managed through pointers or references, value types are stored directly in the memory area allocated for the current execution context (for example, in local variables of a function).