BCOPY(9)

💖 BCOPY(9) — copy byte string 💖

okay so this icon is from the Kernel Developer's Manual, and bestie... it’s giving “legacy API that’s about to leave the group chat.” 💅 No cap.

🌸 NAME 🌸

• bcopy — copy byte string

✨ SYNOPSIS ✨

#include <sys/systm.h>

void
bcopy(const void *src, void *dst, size_t len);

🦋 DESCRIPTION 🦋

The bcopy() interface is obsolete. Do not add new code using it. It will soon be purged. Use memcpy(9) instead. (And yes, the bcopy() function is now a macro for memcpy(9).) 💀

The bcopy() function copies len bytes from string src to string dst. Simple, right? 🫶

⚠️ unlike bcopy(3), the two strings must not overlap! In the traditional BSD kernel, overlapping copies were handled by the now-purged ovbcopy() function. If you need to copy overlapping data, see memmove(9). fr fr, don’t ignore this one.

If len is zero, no bytes are copied. periodt. ✨

🌈 SEE ALSO 🌈

• bcopy(3)
• memcpy(9)
• memmove(9)

mwah 💋 — this page is from Debian, dated July 7, 2001, and it’s literally BCOPY(9). 🎀