PRB: C4047 May Occur When a Function Prototype Is Omitted

Last reviewed: July 24, 1997
Article ID: Q34859
The information in this article applies to:
  • The Microsoft C/C++ Compiler (CL.EXE), included with: - Microsoft C for MS-DOS, versions 6.0, 6.0a, 6.0ax - Microsoft C for OS/2, versions 6.0, 6.0a - Microsoft C/C++ for MS-DOS, version 7.0 - Microsoft Visual C++ for Windows, versions 1.0, 1.5 - Microsoft Visual C++, 32-bit Edition, versions 1.0, 2.0, 4.0, 5.0

SYMPTOMS

An attempt to compile an application generates the following message:

   C4047 'operator' : different levels of indirection

CAUSE

Here are some items that might cause this error:

  • The code does not specify a required function prototype or the code does not include the header file that contains the prototype,
  • A reference to a variable is misspelled so that another variable is referenced instead of the intended variable.
  • The code assigns a pointer a value of another type without the appropriate type cast.

When the code omits the function declaration/prototype, the compiler creates a default prototype with "int" the assumed return type. When you use the function the C4047 warning may occur; for example, if you assign the function return value to a variable other than an int.

RESOLUTION

Modify the source code to eliminate the cause of the problem.


Additional query words: 8.00 8.00c 9.00
Keywords : CLIss kbfasttip
Version : 6.0 6.0a 6.0ax 7.0 1.0 1.5 2.0 4
Issue type : kbprb


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Last reviewed: July 24, 1997
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