Oct 25, 2023 · std::memcpy is meant to be the fastest library routine for memory-to-memory copy. It is usually more efficient than std::strcpy, which must scan ...
Copies the values of num bytes from the location pointed to by source directly to the memory block pointed to by destination.
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The C library function void *memcpy(void *dest, const void *src, size_t n) copies n characters from memory area src to memory area dest.
The memcpy() function shall copy n bytes from the object pointed to by s2 into the object pointed to by s1. If copying takes place between objects that ...