-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Eric Blake on 12/13/2006 9:16 PM: > Oh, and POSIX also states that 'return sigsetjmp' gives undefined > behavior. There are strict limits on the expressions that may validly > contain the use of sigsetjmp. The implementation of AG_LINK_SIGSETJMP in > ag_macros.m4 is really broken. >
For that matter, a quick grep of autogen's use of sigsetjmp exposed some bugs: ./agen5/autogen.c: int signo = sigsetjmp( abendJumpEnv, 0 ); ./agen5/expPrint.c: int faultType = sigsetjmp( printJumpEnv, 0 ); ./agen5/expPrint.c: if (sigsetjmp( printJumpEnv, 0 ) == 0) Of those, only the third is correct. POSIX is explicit that using the result of sigsetjmp in an assignment expression is not defined, but that comparison of the result to a constant integer as the entire expression of a control statement is allowed. - -- Life is short - so eat dessert first! Eric Blake [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFgNVD84KuGfSFAYARAkPSAJ4m/A+b8G/P7UCmTAFhVQup9XoT4wCfRhQK 2l8VrszUhn9eBX3x1aAzSmM= =FIUZ -----END PGP SIGNATURE----- ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Autogen-users mailing list Autogen-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/autogen-users
