On Mon, Jan 11, 2016 at 7:26 PM, Vincent Lefevre <vinc...@vinc17.net> wrote: > On 2016-01-07 21:45:44 +0100, Niels Möller wrote: >> That said, it sounds reasonable to me to replace abort by raise(SIGFPE). >> A configure check may be needed; I think both abort and raise are ANSI >> C, but I suspect SIGFPE isn't. > > SIGFPE is at least in ISO C99. I don't know when it was introduced, > but the C rationale says:
It's in C89 as well, This is where I find the section about SIGFPE should be defined as a maco in <signal.h> http://port70.net/~nsz/c/c89/c89-draft.html#4.7 > > 7.14 Signal handling <signal.h> > > This facility was retained from /usr/group since the C89 Committee > felt it important to provide some standard mechanism for dealing > with exceptional program conditions. Thus a subset of the signals > defined in UNIX were retained in the Standard, along with the basic > mechanisms of declaring signal handlers and, with adaptations, > raising signals (see §7.14.2.1). For a discussion of the problems > created by including signals, see §5.2.3. > > The signal machinery contains many misnomers: SIGFPE, SIGILL, and > SIGSEGV have their roots in PDP-11 hardware terminology, but the > names are too entrenched to change. The occurrence of SIGFPE, for > instance, does not necessarily indicate a floating-point error. A > conforming implementation is not required to field any hardware > interrupts. > > The C89 Committee has reserved the space of names beginning with > SIG to permit implementations to add local names to <signal.h>. > This implies that such names should not be otherwise used in a C > source file which includes <signal.h>. > > -- > Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> > 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> > Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon) > _______________________________________________ > gmp-devel mailing list > gmp-devel@gmplib.org > https://gmplib.org/mailman/listinfo/gmp-devel _______________________________________________ gmp-devel mailing list gmp-devel@gmplib.org https://gmplib.org/mailman/listinfo/gmp-devel
