相关疑难解决方法(0)

编译以下代码：

double getDouble()
{
    double value = 2147483649.0;
    return value;
}

int main()
{
     printf("INT_MAX: %u\n", INT_MAX);
     printf("UINT_MAX: %u\n", UINT_MAX);

     printf("Double value: %f\n", getDouble());
     printf("Direct cast value: %u\n", (unsigned int) getDouble());
     double d = getDouble();
     printf("Indirect cast value: %u\n", (unsigned int) d);

     return 0;
}

输出 (MSVC x86)：

INT_MAX: 2147483647
UINT_MAX: 4294967295
Double value: 2147483649.000000
Direct cast value: 2147483648
Indirect cast value: 2147483649

输出 (MSVC x64)：

INT_MAX: 2147483647
UINT_MAX: 4294967295
Double value: 2147483649.000000
Direct cast value: 2147483649
Indirect cast value: …