CFDataAppend
CFDataAppend is a function within the Core Foundation framework in Apple's operating systems, including macOS and iOS. Its primary purpose is to append data from one byte buffer to another existing data buffer. This function is part of the CFData collection type, which represents immutable sequences of bytes.
The function signature for CFDataAppend is typically CFDataAppend(CFMutableDataRef theData, const void *bytes, CFIndex length). Here, theData
When CFDataAppend is called, it dynamically resizes the mutable data buffer if necessary to accommodate the
It's important to note that CFDataAppend operates on CFMutableDataRef, which is a mutable variant of CFData.