unistr/*, uniconv/*: Fix undefined behaviour. Reported by Jeffrey Walton <noloader@gmail.com>. * lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size. * lib/unistr/u-cpy-alloc.h (FUNC): Likewise. * lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise. * lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.

Description:
help detect directory cycles efficiently

Files:
lib/cycle-check.c
lib/cycle-check.h
m4/cycle-check.m4

Depends-on:
assure
dev-ino
same-inode
stdbool
stdint

configure.ac:
gl_CYCLE_CHECK

Makefile.am:
lib_SOURCES += cycle-check.c

Include:
"cycle-check.h"

License:
GPL

Maintainer:
Jim Meyering