http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52026
Bug #: 52026
Summary: [c++0x] g++: Constexpr Variable Appears Uninitialized
in Lambda
Classification: Unclassified
Product: gcc
Version: 4.6.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: chees...@gmail.com
Created attachment 26487
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26487
The code sample exhibiting the suspected bug.
Hello everyone,
In the code fragment below, g++ (4.6.1 on Linux Mint 64-bit) complains that x
is uninitialized in the lambda function, and prints out an initialized value
from the stack for the last three lines of the program's output. I'd except all
four lines of the output to be '5', so I suspect that this may be a compiler
bug.
Also, even without the reference-capture in the lambda function, the code still
compiles. Below follows the command used to compile the code, along with one
possible output.
# g++ -Wall -std=c++0x c.cpp
c.cpp: In lambda function:
c.cpp:25:4: warning: ‘x’ is used uninitialized in this function
[-Wuninitialized]
# ./a.out
5
32535
32535
32535
