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check_stack

Instructs the compiler to turn off stack probes if off (or ) is specified, or to turn on stack probes if on (or +) is specified.


#pragma check_stack([ {on | off}] )
#pragma check_stack{+ | –}

If no argument is given, stack probes are treated according to the default. This pragma takes effect at the first function defined after the pragma is seen. Stack probes are neither a part of macros nor of functions that are generated inline.

If you don't give an argument for the check_stack pragma, stack checking reverts to the behavior specified on the command line. For more information, see Compiler Reference. The interaction of the #pragma check_stack and the /Gs option is summarized in the following table.

Using the check_stack Pragma
Syntax Compiled with /Gs option? Action

#pragma check_stack( ) or

#pragma check_stack

Yes

Turns off stack checking for functions that follow

#pragma check_stack( ) or

#pragma check_stack

No

Turns on stack checking for functions that follow

#pragma check_stack(on)

or #pragma check_stack +

Yes or No

Turns on stack checking for functions that follow

#pragma check_stack(off)

or #pragma check_stack –

Yes or No

Turns off stack checking for functions that follow

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