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# BUG: EE: "CXX0058: Error: Overloaded Operator Not Found"

Article ID: 116370

Article Last Modified on 10/23/2003

APPLIES TO

- Microsoft CodeView 4.0
- Microsoft CodeView 4.01
- Microsoft CodeView 4.1
- Microsoft CodeView 4.0
- Microsoft CodeView 4.01
- Microsoft CodeView 4.1

This article was previously published under Q116370

## SYMPTOMS

When attempting to evaluate overloaded functions in Codeview's command window, you may receive the following error message:
CXX0058: Error: Overloaded Operator Not Found

## CAUSE

Codeview's expression evaluator requires exact argument matches in order to evaluate overloaded functions. In addition, for the purpose of argument matching, top level modifiers (i.e., const, volatile) are ignored.

## RESOLUTION

Use appropriate type casts when specifying function parameters so that they exactly match the function's formal parameter list. See the next section for more details.

## MORE INFORMATION

To demonstrate this problem, build a debug version of the HELLO sample in the \msvc\mfc\samples\hello directory. Start a debugging session using Codeview for Windows and enter the following commands in the command window:

    >p2
    >?afxDump << "Hello\n"
    >g CMainWindow::OnAbout
    >p2
    >?afxDump << about

Both afxDump calls will return the CXX0058 error. The g instruction tells Codeview to go until it reaches the CMainWindow::OnAbout() function.
Restart HELLO and enter the following commands using the appropriate type casts (these will evaluate correctly):

    p2
    ?afxDump << (char far *)"Hello\n"
    g CMainWindow::OnAbout
    p2
    ?afxDump << (CObject *)&about

Additional query words: 4.00 4.01 4.10

Keywords: kb16bitonly KB116370