Which creates or instantiates the memory for a structure

You may also want to think about how the data will be accessed and store it as a linked list or array or array of pointers etc. OznOg wants to know why I use calloc instead of malloc. Notice how, despite not setting it to anything, buffer[0].

Not 0. Not NULL. This is because malloc instantiates memory, but does not initialise it. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Allocate memory for buffer of type struct in C Ask Question.

Asked 2 years ago. Active 2 years ago. Viewed times. What is, after all, the right way to allocate memory for the buffer? Improve this question.

Add a comment. Active Oldest Votes. The right way would be for each pointer, you allocate some memory for them. Improve this answer. SaltyPleb SaltyPleb 1 1 silver badge 5 5 bronze badges. Much better than just answering the question. You should also treat the case of IPv6 for completeness.

Edited for IPv6 and string case — SaltyPleb. LegendofPedro LegendofPedro 1, 2 2 gold badges 10 10 silver badges 21 21 bronze badges. I know that, but why do you need the memset, and why to you propose it? Because having initialised memory is preferable to instantiated memory. The code snippet in the Kernel Memory section shows a device global memory and its accesses within the kernel.

Unlike kernel memory, the compiler does not define the structure of a buffer in global memory. The compiler instantiates a specialized LSU for each access site based on the memory access pattern to maximize the efficiency of data accesses. All accesses to global memory must go through the hardware interface. The compiler connects every LSU to an existing hardware interface through which it transacts with device global memory.

Since the compiler cannot alter that interface or create more such interfaces, it must share the interface between multiple datapath reads or writes, which can limit the throughput of the design. The strategies used by the compiler to maximize efficient use of available memory interface bandwidth include but are not limited to the following:.

Eliminating unnecessary accesses. Generating specialized LSUs that can perform the following: Dynamically coalesced accesses that fall within the same memory word as defined by the interface. In This Topic.