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_SECURE_SCL

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The latest version of this topic can be found at _SECURE_SCL.

Defines whether Checked Iterators are enabled. By default, checked iterators are enabled in Debug builds, and disabled in Retail builds.

Important

Direct use of the _SECURE_SCL macro is deprecated. Instead, use _ITERATOR_DEBUG_LEVEL to control checked iterator settings. For more information, see _ITERATOR_DEBUG_LEVEL.

Remarks

When checked iterators are enabled, unsafe iterator use causes a runtime error and the program is terminated. To enable checked iterators, set _ITERATOR_DEBUG_LEVEL to 1 or 2. This implies a _SECURE_SCL setting of 1, or enabled:

#define _ITERATOR_DEBUG_LEVEL 1

To disable checked iterators, set _ITERATOR_DEBUG_LEVEL to 0. This implies a _SECURE_SCL setting of 0, or disabled:

#define _ITERATOR_DEBUG_LEVEL 0

For information on how to disable warnings about checked iterators, see _SCL_SECURE_NO_WARNINGS.

See Also

_ITERATOR_DEBUG_LEVEL
Checked Iterators
Debug Iterator Support
Safe Libraries: C++ Standard Library