Article: Q120968
Product(s): Microsoft C Compiler
Version(s): 1.0,2.0,4.0,4.1,4.2,5.0,6.0
Operating System(s):
Keyword(s): kbcode kbCompiler kbVC500bug
Last Modified: 15-FEB-2002
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The information in this article applies to:
- The C/C++ Compiler (CL.EXE), included with:
- Microsoft Visual C++
- Microsoft Visual C++, 32-bit Editions, versions 1.0, 2.0, 4.0, 4.1, 4.2
- Microsoft Visual C++, 32-bit Enterprise Edition, versions 5.0, 6.0
- Microsoft Visual C++, 32-bit Professional Edition, versions 5.0, 6.0
- Microsoft Visual C++, 32-bit Learning Edition, version 6.0
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SYMPTOMS
========
Disabling a warning with #pragma warning will not succeed if the pragma is
placed within the function where the warning occurs and the warning has a value
of 4700 or greater.
CAUSE
=====
Warnings greater than 4699 are generated by the second and third passes of the
compiler.
RESOLUTION
==========
To disable warnings with a value of 4700 or greater, place the #pragma warning
outside of any function.
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.
MORE INFORMATION
================
Sample Code
-----------
The following sample code demonstrates the problem:
/* Compile options needed: /W4
*/
float big;
float big2;
int junk1;
/* Use this pragma instead of the one below to disable all
warnings */
/* #pragma
warning(disable:4756;disable:4706;disable:4699;disable:4244)
*/
void main(void)
{
int i;
/* This pragma will disable only the warnings < 4699 because
of its placement within the function body */
#pragma
warning(disable:4756;disable:4706;disable:4699;disable:4244)
big = +1.0e+99;
big2 = +1.1e+99;
junk1 = i;
if( i=0 )
i=0;
}
Additional query words: 8.00 8.00c 9.00 10.00 10.10 10.20
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Keywords : kbcode kbCompiler kbVC500bug
Technology : kbVCsearch kbAudDeveloper kbCVCComp
Version : :1.0,2.0,4.0,4.1,4.2,5.0,6.0
Issue type : kbbug
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