Bug 48093 – gcc C++ internal error on incorrect usage of "typename"

Bug 48093 - gcc C++ internal error on incorrect usage of "typename"

Summary:	gcc C++ internal error on incorrect usage of "typename"

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	gcc (Show other bugs)
Sub Component:
Version:	7.1
Hardware:	All Linux

Priority	medium Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Jakub Jelinek
QA Contact:	David Lawrence
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Reported:	2001-07-09 12:52 EDT by Kenton Varda
Modified:	2007-04-18 12:34 EDT (History)
CC List:	0 users

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Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2001-07-25 10:50:56 EDT
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Description Kenton Varda 2001-07-09 12:52:50 EDT

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux 2.4.2-2 i686; en-US; 0.7) Gecko/20010316

Description of problem:
This code is not valid C++.  However, it crashes GCC.

template<typename T>
void f()
{
    typename T::u;  //incorrect C++
}


How reproducible:
Always

Steps to Reproduce:
Compile the code

Actual Results:
testgcctypenamebug.cpp: In function `void f ()':
testgcctypenamebug.cpp:4: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:http://bugzilla.redhat.com/bugzilla/> for instructions.

Expected Results:
Some form of error indicating that the code is incorrect.

Additional info:

This bug is only relevant to those of us who learn C++ by writing code and
seeing if GCC compiles it.  :)

Comment 1 Jakub Jelinek 2001-07-25 10:50:51 EDT

Fixed with http://gcc.gnu.org/ml/gcc-patches/2000-08/msg00490.html
which will be included in gcc-c++-2.96-96.

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