Menu
alloca() Defined in alloca. h , this function allocates local storage in a function. It returns a pointer to size bytes of memory. The default implementation returns an eight-byte aligned block of memory on the stack.
malloc() allocates memory on the process heap. Memory allocated using malloc() will remain on the heap until it is freed using free() . alloca() allocates memory within the current function's stack frame. Memory allocated using alloca() will be removed from the stack when the current function returns.
The alloca() function allocates size bytes of space in the stack frame of the caller. This temporary space is automatically freed when the function that called alloca() returns to its caller.
In C, dynamic memory is allocated from the heap using some standard library functions. The two key dynamic memory functions are malloc() and free(). The malloc() function takes a single parameter, which is the size of the requested memory area in bytes. It returns a pointer to the allocated memory.
Is alloca part of the C++ standard?
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With