Q60253: C4061 Long/Short Mismatch in Argument

Article: Q60253
Product(s): See article
Version(s): 5.00 5.01 6.00 | 5.00 5.01 6.00
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | s_quickc | mspl13_c
Last Modified: 18-APR-1990

In Microsoft C Versions earlier than Version 6.00, the C4061 warning
was generated only if the actual and formal arguments to a function
were a mix of long and int types. Beginning with Microsoft C Version
6.00, this warning message will be generated if the types are a mix of
int and char. This is not a fatal error and is generated only to alert
the programmer that there MAY be a problem.

The error message is generated for the following sample code at
warning level 1. If the /Qc option is used (Quick Compile), the
warning is not generated at any warning level. Also, in QuickC
Versions 2.00, 2.01, 2.50, and 2.51, a warning is never generated for
this code.

Sample Code
-----------

#include <stdio.h>

void foo (char); /* At prototype level argument type is CHAR */
void main(void);

void main (void)
{
   foo (200);   /*  Now passing an INTEGER to a CHAR  */
}

void foo (char c) /* Argument correctly declared as CHAR */
{}

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.