| Title: | DECC |
| Notice: | General DEC C discussions |
| Moderator: | TLE::D_SMITH N TE |
| Created: | Fri Nov 13 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 2212 |
| Total number of notes: | 11045 |
Will the following always be evaluated in the same order
so that it produces the same result on any platform?
a[i++] = i;
Thanks,
Stuart.
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 2160.1 | SPECXN::DERAMO | Dan D'Eramo | Wed Apr 23 1997 16:40 | 3 | |
No. Its behavior is undefined.
Dan
| |||||
| 2160.2 | We will warn on such cases | DECC::VOGEL | Wed Apr 23 1997 16:43 | 13 | |
Note that V5.6 of DEC C will issue the following warning for this case:
a[i++] = i;
....^
%CC-W-UNDEFVARFETCH, In this statement, the expression "a[i++]=i" modifies
"i", and fetches its value in a computation that is not used to produce the
modified value without an intervening sequence point. This behavior is
undefined.
Ed
| |||||
| 2160.3 | Thanks | CHEFS::DAVIDSONS | Wed Apr 23 1997 16:55 | 1 | |