[Bug c/25682] [4.0/4.1/4.2 Regression] ICE when using old sytle offsetof (with non zero start) as array size

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2006-01-17 09:58 -------
Subject: Bug 25682

Author: jakub
Date: Tue Jan 17 09:57:56 2006
New Revision: 109812

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=109812
Log:
        PR c/25682
        * c-typeck.c (build_unary_op): Fold offsetof-like expressions
        even when the pointer is not NULL.
cp/
        * decl.c (compute_array_index_type): After issuing not an integral
        constant-expression error, set size to 1 to avoid ICEs later on.
testsuite/
        * gcc.dg/pr25682.c: New test.
        * g++.dg/parse/array-size2.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/parse/array-size2.C
    trunk/gcc/testsuite/gcc.dg/pr25682.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-typeck.c
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/decl.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25682