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From: aj@suse.de To: gcc-gnats@gcc.gnu.org Cc: matz@suse.de Subject: c++/9878: [Regression 3.3/3.4] error: non-lvalue in unary `&' wrongly issued Date: Thu, 27 Feb 2003 14:56:00 -0000 [thread overview] Message-ID: <20030227145242.17606.qmail@sources.redhat.com> (raw) >Number: 9878 >Category: c++ >Synopsis: [Regression 3.3/3.4] error: non-lvalue in unary `&' wrongly issued >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: rejects-legal >Submitter-Id: net >Arrival-Date: Thu Feb 27 14:56:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: Andreas Jaeger >Release: unknown-1.0 >Organization: >Environment: Linux x86 and x86-64, gcc 3.3 from 20030215 and GCC 3.4 from 20030215. >Description: This small C++ program: void f(void) { short x = 0; const int &y = x; } fails to compile with: gee:~/tmp:[0]$ /opt/gcc/3.4-devel/bin/g++ -c t.C t.C: In function `void f()': t.C:4: error: non-lvalue in unary `&' gee:~/tmp:[1]$ /opt/gcc/3.3-devel/bin/g++ -c t.C t.C: In function `void f()': t.C:4: error: non-lvalue in unary `&' GCC 3.2 compiles this fine. IMHO this is valid: according to 8.5.3[#5], the reference is bound to a temporary holding the value of np_ptr_F. Replaceing short by double makes it compile (with two warnings). >How-To-Repeat: compile the small test program. >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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