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Learn more about the check_stack pragma directive in Microsoft C/C++ |
check_stack pragma |
2/7/2025 |
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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{+|-}
This pragma only applies to 32-bit platforms (x86, ARM32). It has no effect on 64-bit platforms.
This pragma takes effect at the first function defined after the pragma is seen. Stack probes are not inserted for macros or functions that are generated inline.
#pragma check_stack(off) / #pragma Check_stack- is ignored if the size of the function locals is larger than 4096 or the value specified by /Gs.
The default behavior of the compiler is to insert stack probes at the beginning of each function if the size of the locals exceeds 4096 or the value specified by /Gs.
Use /Gs (Control stack checking calls) to change the threshold of the locals that trigger stack probes. Use with caution.
Using #pragma check_stack() without arguments is deprecated.
Compiler options
Pragma directives and the __pragma and _Pragma keywords