-fexceptions (-qeh) (C++ only)
Category
Pragma equivalent
None.
Purpose
The -fexceptions option controls whether exception handling is allowed in the module being compiled. The -qeh option controls whether exception handling is enabled in the module being compiled.
Syntax
.-exceptions----. >>- -f--+-no-exceptions-+--------------------------------------><
Defaults
-fexceptions or -qeh
Usage
When -qeh is in effect, exception handling is enabled. If your program does not use C++ structured exception handling, you can compile with -qnoeh to prevent generation of code that is not needed by your application.
The difference between -fexceptions and -qeh is that -fexceptions allows exception handling while -qeh informs the compiler that exceptions need to be handled. When exceptions are not allowed during a particular compilation process, the compiler assumes that exceptions do not need to be handled; exceptions might originate from code that is compiled separately and still occur.
Specifying -qeh also implies -qrtti. If -qeh is specified together with -qnortti, RTTI information will still be generated as needed.
Predefined macros
__EXCEPTIONS is predefined to 1 when -fexceptions (-qeh) is in effect; otherwise, it is undefined.
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