Memcpy implementation in Cvoid memcpy(void *dest, void *src, int size) { int i; for (i = 0; i < size; i++) { ((char *)dest)[i] = ((char *)src)[i]; } } void print_elements(char *array, int size) { int i; printf ("Elements : "); for (i = 0...
I personally think that the good() function case is an accident – that using memcpy could be safe for this particular libc implementation. But this is more of an exception than a rule. efriedma-quic commented on Mar 26, 2024 efriedma-quic on Mar 26, 2024· edited by efriedma-quic ...
Despite being specified "as if" a temporary buffer is used, actual implementations of this function do not incur the overhead or double copying or extra memory. A common approach (glibc and bsd libc) is to copy bytes forwards from the beginning of the buffer if the destination starts before...
Despite being specified "as if" a temporary buffer is used, actual implementations of this function do not incur the overhead or double copying or extra memory. A common approach (glibc and bsd libc) is to copy bytes forwards from the beginning of the buffer if the destination starts before...
The implementation shall behave as if no function defined in this volume of POSIX.1-2017 calls `mbtowc()`. The `mbtowc()` function need not be thread-safe. ## Return value If _s_ is a _null_ pointer, `mbtowc()` shall return a non-zero or 0 value, if character encodings, res...