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From: jompo@abi.snv.jussieu.fr To: gcc-gnats@gcc.gnu.org Subject: c/6765: gcc - incrementation - ternary operator Date: Wed, 22 May 2002 04:26:00 -0000 [thread overview] Message-ID: <20020522112523.2556.qmail@sources.redhat.com> (raw) >Number: 6765 >Category: c >Synopsis: gcc - incrementation - ternary operator >Confidential: no >Severity: non-critical >Priority: low >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed May 22 04:26:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: Pothier Joel >Release: gcc 2.95.2 - gcc 2.95.3 - gcc 3.04 >Organization: >Environment: gcc 2.95.3, gcc 3.04 (home compiled on Linux Mandrake 8.1) Mac OS X : gcc 2.95.2 >Description: the ternary operator causes incrementation of left hand side expression to occurs before it should in an expression where the variable appears at both side of the affectation expression. example: *s++ = (*s == 'x') ? 'X': *s; Note: this does not appears in gcc-2.96 (Mandrake 8.2) >How-To-Repeat: #include <stdio.h> #define STRING "abc" int main() { char s[10], *t; strcpy(s, STRING); t = s; while (*t != '\0') *t++ = (*t == 'b') ? 'X': *t; /* this print "Xc" instead of "aXc" */ printf("%s\n",s); } >Fix: Must replace ternary operator by if/else instruction >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2002-05-22 11:26 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-05-22 4:26 jompo [this message] 2002-05-22 5:03 neil
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