int到bool cast

Yak*_*kov 0 c++ int warnings casting boolean

在VS 10中,我收到警告:

warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
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试图编译

int x ;
static_cast<bool>(x);
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如何编写一个不会引起此警告的代码?