view modules/errno @ 40214:452ab00796c7

Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.
author Bruno Haible <bruno@clisp.org>
date Sat, 09 Mar 2019 20:32:25 +0100
parents 1f14c6dd175d
children
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Description:
A POSIX-like <errno.h>.

Files:
lib/errno.in.h
m4/errno_h.m4

Depends-on:
include_next

configure.ac:
gl_HEADER_ERRNO_H

Makefile.am:
BUILT_SOURCES += $(ERRNO_H)

# We need the following in order to create <errno.h> when the system
# doesn't have one that is POSIX compliant.
if GL_GENERATE_ERRNO_H
errno.h: errno.in.h $(top_builddir)/config.status
	$(AM_V_GEN)rm -f $@-t $@ && \
	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
	  sed -e 's|@''GUARD_PREFIX''@|${gl_include_guard_prefix}|g' \
	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
	      -e 's|@''NEXT_ERRNO_H''@|$(NEXT_ERRNO_H)|g' \
	      -e 's|@''EMULTIHOP_HIDDEN''@|$(EMULTIHOP_HIDDEN)|g' \
	      -e 's|@''EMULTIHOP_VALUE''@|$(EMULTIHOP_VALUE)|g' \
	      -e 's|@''ENOLINK_HIDDEN''@|$(ENOLINK_HIDDEN)|g' \
	      -e 's|@''ENOLINK_VALUE''@|$(ENOLINK_VALUE)|g' \
	      -e 's|@''EOVERFLOW_HIDDEN''@|$(EOVERFLOW_HIDDEN)|g' \
	      -e 's|@''EOVERFLOW_VALUE''@|$(EOVERFLOW_VALUE)|g' \
	      < $(srcdir)/errno.in.h; \
	} > $@-t && \
	mv $@-t $@
else
errno.h: $(top_builddir)/config.status
	rm -f $@
endif
MOSTLYCLEANFILES += errno.h errno.h-t

Include:
<errno.h>

License:
LGPLv2+

Maintainer:
all