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Compiler Warning (level 2) C4308

  • Artikkeli

negative integral constant converted to unsigned type

Remarks

An expression converts a negative integer constant to an unsigned type. The result of the expression is probably meaningless.

The /sdl (Enable Additional Security Checks) compiler option elevates this warning to an error.

Example

// C4308.cpp
// compile with: /W2
unsigned int u = (-5 + 3U);   // C4308

int main()
{
}