Strncpy sizeof

If the source's length is less than the max number passed as third parameter . My understanding is that strncpy . I haven't long time in touch with C language.

These are unicode strings, you need to use wcslen, etc. If I have a string that should be NULL terminate is it good practice to use sizeof(str) or sizeof(str) - when using a function like strncpy? The stpncpy and strncpy functions copy at most len characters from src into dst. The behavior is undefined if the size of the character array pointed to .

Some programmers consider strncpy() to be inefficient and error prone. If the programmer knows (i.e., includes code to test!) that the size of dest is greater than .