---
name: "bcmp"
section: "3"
platform: "linux"
package: "man-pages"
version: "6.19-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux", "freebsd", "macos"]
url: "https://new.carta.tech/bcmp"
---

# bcmp(3)

byte compare

## NAME

bcmp - byte compare

## LIBRARY

Standard C library (*libc*, *-lc*)

## SYNOPSIS

```
#include <strings.h>
```

**\[\[deprecated\]\] int bcmp(**size\_t n;                         **const void** *s1***\[***n***\], const void** *s2***\[***n***\], size\_t** *n***);**

## DESCRIPTION

**bcmp**() is identical to [**memcmp**(3)](/memcmp/3.md); use the latter instead.

## STANDARDS

None.

## HISTORY

4\.3BSD. Marked as LEGACY in POSIX.1-2001; removed in POSIX.1-2008.

## SEE ALSO

[**memcmp**(3)](/memcmp/3.md)