BUG: Incomplete pragma Directive May Cause C1001 Error

• Microsoft C/C++ Compiler (CL.EXE) included with: - Microsoft Visual C++, 32-bit Edition, versions 4.0, 4.1, 4.2, 5.0

SYMPTOMS

When you use an incomplete #pragma preprocessor directive, the following internal compiler error may be generated:

   warning C4081: expected '('; found 'newline'
   fatal error C1001: INTERNAL COMPILER ERROR
   (compiler file 'msc1.cpp', line 899)
   Please choose the Technical Support command on the Visual C++
   Help menu, or open the Technical Support help file for more
   information

RESOLUTION

Use a complete pragma directive. For a listing of valid pragma directives and their syntax, please consult the Help menu.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

The #pragma directives that cause this problem are:

• alloc_text
• auto_inline
• code_seg
• comment
• data_seg
• function
• init_seg
• inline_depth
• inline_recursion
• intrinsic
• optimize
• pack
• pointers_to_members
• setlocale
• vtordisp
• warning

Sample Code to Demonstrate Problem

   // Compile Options - none

   #pragma comment

   // the previous line is incomplete,
   // the following line is complete and won't cause the error:
   // #pragma comment(lib, "msvcrt.lib")