Menu
According to [expr.cast]/4, a C-style cast tries the following casts in order:
const_caststatic_caststatic_cast followed by const_cast
reinterpret_castreinterpret_cast followed by const_cast
The following cast is well-formed:
const_cast<int&>(static_cast<const int&>(0))
Yet both GCC and Clang reject the cast (int&)0. Why?
776
int main means that the main function returns an integer value.so in case of integer, we use int in C programming. Int keyword is used to specify integer datatype . It's size may be 16,32,64 bits depending on the machine or further short /long types. int is a datatype which is used to represent integer values.
The short answer, is because the C++ standard requires main() to return int . As you probably know, the return value from the main() function is used by the runtime library as the exit code for the process. Both Unix and Win32 support the concept of a (small) integer returned from a process after it has finished.
The Excel INT function returns the integer part of a decimal number by rounding down to the integer. Note that negative numbers become more negative. For example, while INT(10.8) returns 10, INT(-10.8) returns -11. number - The number from which you want an integer.
int. Integers are whole numbers that can have both zero, positive and negative values but no decimal values. For example, 0 , -5 , 10. We can use int for declaring an integer variable.
It is a bug in gcc and clang.
According to CWG 909, the "straightforward interpretation of the wording" should be used when generating cast sequences for C-style casts; there, the first cast invokes a conversion operator, but there is no reason to think that it should be any different when the first cast is reference binding a temporary.
I've posted a patch to the gcc mailing list, generated from this git branch, but it hasn't received any attention so far.
126
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
