At some point, 'call abort()' was changed to 'stop'; this works fine as
long as exit status is != 0. At least on my Linux system, this works
until 255. (Which matches POSIX, which requires 8 bits.) For "stop 256",
I get an exit status == 0.
I am not sure whether other systems break earlier, but I assume most
support 0 to 255. Currently, gcc/testsuite/*fortran* has those maximal
'stop' counts:
127
127
144
174
192
240
1516 ! <-- this was patched.
In libgomp, the current record are 222 and 242. Hence, when adding
extensive test cases, one needs to watch out!
Cheers,
Tobias
Index: gcc/testsuite/gfortran.dg/achar_2.f90
===================================================================
--- gcc/testsuite/gfortran.dg/achar_2.f90 (revision 277672)
+++ gcc/testsuite/gfortran.dg/achar_2.f90 (revision 277678)
@@ -2023,4 +2023,9 @@
c = "ÿ"
if (achar(i) /= "ÿ") STOP 1514
if (iachar(c) /= iachar("ÿ")) STOP 1515
+ print *, 'DONE'
end program main
+
+! DejaGNU only checks the exit code but 'STOP 256' has exit code 0. Hence,
+! check output for:
+! { dg-output "DONE" }
