Dec 28, 2010 · @Simone - libc writers have spend a lot of time making sure their memcpy implementations are efficient, and compiler writers have spent just as much time making their compilers look for cases when assignments could be made faster by memcpy and vice versa. Your argument of "it can be as bad as you want it to" as well as your out-of-the-blue

Jan 14, 2016 · If you only want to copy the string, then the difference doesn't matter. It's hard to say which one is better. But in the case of a very big size and a very short src , setting all the trailing null characters with the "Example 1" approach might make the program a bit slower.
Hello, world ! I wanted to know whats the difference between using strcpy() and using memcpy(), i know that strcpy is just for strings, and memcpy is for any data type, but yesterday i was about to blow a whole issue about my program not acting as supposed, i tried to copy strings to an array of strings but that didnt work using strcpy(), but before i was about to share my issue, i tried

Memcpy, strcpy. Strcpy is mainly used to copy strings, while memcpy can copy any type. Of course, it doesn't care what type to copy. It is a whole block copy based on memory data. The main difference between the two is that strcpy 'ends with \ 0', while memcpy does not end, so you need to specify the copy size.

May 6, 2014 · The reason why you get a warning on sprintf and strcpy, and not on memcpy, is because memcpy has a length parameter that limits how much memory you copy. For strcpy and memcpy, the input has to be terminated with a \0. If not, it will continue out of bounds. You can limit this by using the snprintf and strncpy functions. Those do limit

Dec 8, 2004 · Re: memcpy Vs strcpy. strcpy ends copying of data when it reaches NULL character (Say, '\0' or 0) and then copies NULL at the end of destination data. It is specifically used to copy strings (char []). memcpy can be used to copy any type of data (void*).

Prev Next. 63. What is the difference between pre increment operator and post increment operator in C? Pre increment operator is used to increment variable value by 1 before assigning the value to the variable. Post increment operator is used to increment variable value by 1 after assigning the value to the variable.

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strcpy isn't the only way to initialize an array, however, it is smart enough to detect and respect the terminating 0 at the end of the string. You could also use memcpy to copy the string into s but that requires you pass in the length of the data to be copied, and to ensure the terminating 0 (NULL) is present in s.
Jul 11, 2012 · Copies bytes between buffers. More secure versions of these functions are available; see memcpy_s, wmemcpy_s. void *memcpy( void *dest, const void *src, size_t count ); wchar_t *wmemcpy( wchar_t *dest, const wchar_t *src, size_t count ); Parameters. dest New buffer. src Buffer to copy from. count Number of characters to copy. Return Value
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    • difference between memcpy and strcpy