C array bounds checking
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#include <stdio.h>
#define BOUNDCHECK 1
#if BOUNDCHECK
#define DeclareArray(Type,Name,Size) \
Type Name[Size] = {}; \
int Name##Length_ = Size;
#define SetElement(Name,Element,Value) \
if((Element) < Name##Length_ && (Element) >= 0){\
Name[Element] = Value; \
}else{ \
printf("WARNING\n"); \
}
#define GetElement(Name,Element) \
(((Element) < Name##Length_ && (Element) >= 0)? \
Name[Element]:printf("WARNING\n"))
#else
#define DeclareArray(Type,Name,Size) \
Type Name[Size] = {};
#define SetElement(Name,Element,Value) \
{ \
Name[Element] = Value; \
}
#define GetElement(Name,Element) \
(Name[Element])
#endif
int main() {
DeclareArray(int,SomeArray,5);
SetElement(SomeArray,4,7);
SetElement(SomeArray,5,2); // Waring
GetElement(SomeArray,5); // Waring
int Element = GetElement(SomeArray,4);
printf("Element = %i\n", Element );
printf("Element = %i\n", GetElement(SomeArray,5) ); // Warning
return 0;
}
C
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