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Bug 46389 - instantiating a template with an enum gives
instantiating a template with an enum gives
Product: Red Hat Linux
Classification: Retired
Component: gcc (Show other bugs)
All Linux
medium Severity low
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Assigned To: Jakub Jelinek
David Lawrence
Depends On:
  Show dependency treegraph
Reported: 2001-06-28 06:24 EDT by Need Real Name
Modified: 2007-04-18 12:34 EDT (History)
0 users

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-01-22 07:29:47 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
test case with syntax fixes (289 bytes, text/plain)
2004-01-22 07:29 EST, Nils Philippsen
no flags Details

  None (edit)
Description Need Real Name 2001-06-28 06:24:27 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 4.0)

Description of problem:
I have created a template class that I then try to instantiate with an 
enumeration (rather than a simple int/char or class) and I get an error in 
the default constructor about converting an int to an enumeration.

class Test
        T first;

        Test() : first()

enum DataType{DATE_TYPE=1, CHAR_TYPE=2};

int main(int argc, char *argv[])
    DataType test;          // Ok
    Test<DataType> test3;   // gives a warning

    return 0;

How reproducible:

Steps to Reproduce:
1. Compile the above program

Actual Results:  I get an error on the template instantiation about 
conversion from int to enum DataType.

Expected Results:  This gives a warning in egcs-1.1.2.

Additional info:

I know this has increased from a warning to error in gcc 2.96, and I get 
round it via -fenum-int-equiv or -fpermissive, but since it is an error I 
guess I am doing something wrong. So
a) am I doing something wrong
b) how I should correct my code
Comment 1 Nils Philippsen 2004-01-22 07:29:18 EST
Created attachment 97161 [details]
test case with syntax fixes

The attached code doesn't show the problem on gcc-3.2.3-24 (RHEL3) and
gcc-3.3.2-6 (FC1)

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