Microsoft KB Archive/34859

From BetaArchive Wiki
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Knowledge Base Articles  


PRB: C4047 May Occur When a Function Prototype Is Omitted

Q34859



The information in this article applies to:

  • The Microsoft C/C++ Compiler (CL.EXE),
    • 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, 16-bit edition, versions 1.0, 1.5
    • Microsoft Visual C++, 32-bit Editions, versions 1.0, 2.0, 4.0, 5.0, 6.0




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 : kbCompiler kbVC100 kbVC150 kbVC200 kbVC400 kbVC500 kbVC600
Issue type : kbprb
Technology :


Last Reviewed: July 30, 2001