How do I maintain bounds checking in `std::vector`\'s [] operator for debugging purposes in Visual Studio?

Maintaining Bounds Checking in std::vector's [] Operator for Debugging Purposes

In your quest to migrate code seamlessly from Borland C to Visual Studio, you've encountered a discrepancy in std::vector's behavior. By default, Visual Studio performs bounds checking for both the at() function and the [] operator, even in release builds. However, you desire to selectively enable bounds checking only in debug mode for improved error detection.

Fortunately, Visual Studio allows you to customize this behavior through a macro known as _SECURE_SCL. By setting _SECURE_SCL to 0, you can disable bounds checking for the [] operator in release mode while retaining it in debug mode. This will provide you with the desired functionality and ensure that out-of-bounds access triggers std::out_of_range exceptions, expediting bug identification.

It's important to note that with the upcoming Visual Studio 2010 release, bounds checking is planned to be disabled by default in release builds but maintained in debug builds. To control this behavior, the macro will be renamed to _ITERATOR_DEBUG_LEVEL, allowing you to specify the desired level of bounds checking for each build configuration.

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