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authorPaul Eggert <eggert@cs.ucla.edu>2015-12-18 15:41:45 -0800
committerPaul Eggert <eggert@cs.ucla.edu>2015-12-18 15:42:12 -0800
commit73b3beb56dd573a77fd7b103014f2d74674f2e23 (patch)
tree27a552222062dbf966f4442ed5e1eec77ba53d4f /lib
parent81e523fc4d3dcb0cf59a69f45786d2691f982695 (diff)
Merge from gnulib
This mostly commentary fixes. * doc/misc/texinfo.tex, lib/intprops.h: Copy from gnulib. * lib/gnulib.mk: Regenerate with new gnulib-tool.
Diffstat (limited to 'lib')
-rw-r--r--lib/gnulib.mk2
-rw-r--r--lib/intprops.h7
2 files changed, 5 insertions, 4 deletions
diff --git a/lib/gnulib.mk b/lib/gnulib.mk
index 67c7e18401..17a01af0ad 100644
--- a/lib/gnulib.mk
+++ b/lib/gnulib.mk
@@ -21,7 +21,7 @@
# the same distribution terms as the rest of that program.
#
# Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=flexmember --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=setenv --avoid=sigprocmask --avoid=stdarg --avoid=stdbool --avoid=threadlib --avoid=unsetenv --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt binary-io byteswap c-ctype c-strcase careadlinkat close-stream count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode fstatat fsync getloadavg getopt-gnu gettime gettimeofday gitlog-to-changelog intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qcopy-acl readlink readlinkat sig2str socklen stat-time stdalign stddef stdio stpcpy strftime strtoimax strtoumax symlink sys_stat sys_time time time_r time_rz timegm timer-time timespec-add timespec-sub unsetenv update-copyright utimens vla warnings
+# Reproduce by: gnulib-tool --import --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --avoid=close --avoid=dup --avoid=fchdir --avoid=flexmember --avoid=fstat --avoid=malloc-posix --avoid=msvc-inval --avoid=msvc-nothrow --avoid=open --avoid=openat-die --avoid=opendir --avoid=raise --avoid=save-cwd --avoid=select --avoid=setenv --avoid=sigprocmask --avoid=stdarg --avoid=stdbool --avoid=threadlib --avoid=unsetenv --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt binary-io byteswap c-ctype c-strcase careadlinkat close-stream count-one-bits count-trailing-zeros crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dtotimespec dup2 environ execinfo faccessat fcntl fcntl-h fdatasync fdopendir filemode fstatat fsync getloadavg getopt-gnu gettime gettimeofday gitlog-to-changelog intprops largefile lstat manywarnings memrchr mkostemp mktime pipe2 pselect pthread_sigmask putenv qcopy-acl readlink readlinkat sig2str socklen stat-time stdalign stddef stdio stpcpy strftime strtoimax strtoumax symlink sys_stat sys_time time time_r time_rz timegm timer-time timespec-add timespec-sub unsetenv update-copyright utimens vla warnings
MOSTLYCLEANFILES += core *.stackdump
diff --git a/lib/intprops.h b/lib/intprops.h
index 8fff86d437..ecafaf70e1 100644
--- a/lib/intprops.h
+++ b/lib/intprops.h
@@ -272,9 +272,10 @@
Example usage, assuming A and B are long int:
- long int result = INT_MULTIPLY_WRAPV (a, b);
- printf ("result is %ld (%s)\n", result,
- INT_MULTIPLY_OVERFLOW (a, b) ? "after overflow" : "no overflow");
+ if (INT_MULTIPLY_OVERFLOW (a, b))
+ printf ("result would overflow\n");
+ else
+ printf ("result is %ld (no overflow)\n", a * b);
Example usage with WRAPV flavor: