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FYI: negative error status: gcc vs. cl
- From: Daniel Lungu <lungu at nagra dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 9 Jul 2004 21:23:16 +0200 (W. Europe Daylight Time)
- Subject: FYI: negative error status: gcc vs. cl
Igor could be right about (status &= 0xffff), just in case is not masked by
_exit() as for msvcrt exit()
% cat err.c
#include <stdlib.h>
int main(int argc, char **argv)
{
if (argc == 1)
return (0);
exit(strtol(argv[1], NULL, 16));
}
----- b31 = b16 = 0 -----
% err-cl 0x7ffeff5a ; printf "%x\n" $?
5a
----- b16 = 1 -----
% err-cl 0x7ff1ff5a ; printf "%x\n" $?
0
----- b31 = 1 -----
% err-cl 0x8ffeff5a ; printf "%x\n" $?
0
----- havoc with b16 = 1 -----
% err-cl 0x0001105a ; printf "%x\n" $?
Urgent condition on I/O channel
90
% err-cl 0x0001205a ; printf "%x\n" $?
Signal 32
a0
% err-cl 0x0001405a ; printf "%x\n" $?
Signal 64
c0
% err-cl 0x0001305a ; printf "%x\n" $?
Signal 48
b0
% err-cl 0x0001505a ; printf "%x\n" $?
d0
--daniel
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