Windows msdn memcpy

It would guarantee Windows versions compatibility. Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:.

Archived Forums. Sign in to vote. Friday, July 22, PM. SammyD45 wrote:. Saturday, July 23, AM. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Important Make sure that the destination buffer is the same size or larger than the source buffer. Important Because so many buffer overruns, and thus potential security exploits, have been traced to improper usage of memcpy , this function is listed among the "banned" functions by the Security Development Lifecycle SDL.

Send Feedback. The memcpy function copies count characters of src to dest. If the source and destination overlap, this function does not ensure that the original source characters in the overlapping region are copied before being overwritten.

The first argument, dest , must be large enough to hold count characters of src ; otherwise, a buffer overrun can occur. This can lead to a denial of service attack against the application if an access violation occurs, or in the worst case, allow an attacker to inject executable code into your process.