Thememcpy()function is defined in the<cstring>header file. Note:Thememcpy()function is generalized for memory of any type. When working with C-style strings (chararrays) it is better to use thestrcpy()function
Defined in header <cstring> void* memcpy( void* dest, const void* src, std::size_t count ); Performs the following operations in order: Implicitly creates objects at dest. Copies count characters (as if of type unsigned char) from the object pointed to by src into the object point...
问以安全的方式替换memcpyEN我刚刚找到了另一种替代memcpy函数调用的方法。它只适用于GCC(我仍然需要为VC...
Output When you run the program, the output will be: Source: Hello, World! Destination: Hello, World! Extra bites on destination: As you can see, the output is not as expected. This is because we passed the size greater than the actual size of the source memory region. This is an ex...
std::copy is not the same thing as memcpy. std::copy honors C++ objects' copy semantics, which can be a lot more complicated than what memcpy supports. The OP probably wants std::memcpy, from the <cstring> header. I wonder whether popular implementations of std::copy delegate to memcpy ...
Defined in header <cstring> void* memcpy( void* dest, const void* src, std::size_t count ); Performs the following operations in order: Implicitly creates objects at dest. Copies count characters (as if of type unsigned char) from the object pointed to by src into the object point...