SCANC(9)

SCANC(9) | Kernel Developer's Manual | SCANC(9)

# NAME

`scanc` —
use byte string as lookup table index

# SYNOPSIS

`#include <lib/libkern/libkern.h>`

int
`scanc`(u_int size, const u_char *cp, const u_char table[], int mask);

# DESCRIPTION

The `scanc`() function scans the byte string cp, whose length is size. A character in the string is used as an index in the 256-byte table. If a bitwise-AND of the byte from the table and mask isn't zero or the string is exhausted, the scan stops.

# RETURN VALUES

The `scanc`() function returns the length of the rest of the string, including the character which made the scan stop. If the `scanc`() function exhausted the string, it returns 0.

# HISTORY

The `scanc`() function emulates a VAX instruction with the same name.

April 24, 2013 | NetBSD 9.4