On 07/12/2016 06:26 AM, Dominique d'Humières wrote: >>> 2016-07-11 Jerry DeLisle <jvdeli...@gcc.gnu.org> >>> >>> PR fortran/66310 >>> * simplify.c (gfc_simplify_repeat): Set max repeat to huge - 1 to allow >>> one byte for null terminating the resulting string constant. >> >> OK, thanks > Please hold on. I still see several problem with the patch applied. One is > > program p > character :: z = 'z' > print *, repeat(z, huge(1)-2**9) > end > > a.out(67209,0x7fff77e0b000) malloc: *** > mach_vm_map(size=18446744071562067968) failed (error code=3) > *** error: can't allocate region > *** set a breakpoint in malloc_error_break to debug > Operating system error: Cannot allocate memory > Memory allocation failure in realloc > > on x86_64-apple-darwin15.5 with/without the patch. print *, repeat(z, > huge(1)-2**9-1) "works". > > I’ll try to report the other problems in the PR later today. > > Dominique > >
I am holding. On my system I get: Operating system error: Cannot allocate memory Memory allocation failure in xrealloc Which is what I expect. The error is in trying to allocate the buffer in write_blockm which it simply can not do. If you think about it, the numbers are hugely ridiculous. Can you try ncopies = (huge(1)-1)/4 and see what you get? Jerry
