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Compiler Error C2466

  • Article

cannot allocate an array of constant size 0

An array is allocated or declared with size zero. The constant expression for the array size must be an integer greater than zero. An array declaration with a zero subscript is legal only for a class, structure, or union member and only with Microsoft extensions (/Ze).

The following sample generates C2466:

// C2466.cpp
// compile with: /c
int i[0];   // C2466
int j[1];   // OK
char *p;