std::meta::is_signed_type
Defined in header <meta> | ||
|---|---|---|
consteval bool is_signed_type( std::meta::info r ); | (since C++26) |
Returns true if r is a reflection of a signed arithmetic type. Otherwise returns false.
Parameters
| r | - | a reflection value |
Return value
true if r represents a signed arithmetic type; otherwise false.
Exceptions
Throws std::meta::exception if r does not represent a type or type alias.
Example
#include <meta>
static_assert(""
and is_signed_type(^^signed) == true
and is_signed_type(^^unsigned) == false
and is_signed_type(^^int) == true
and is_signed_type(^^bool) == false
and is_signed_type(^^float) == true
);
int main() {}
See also
|
(C++26) | checks if reflection represents an unsigned arithmetic type (function) |
|
(C++26) | checks if reflection represents an arithmetic type (function) |
|
(C++26) | returns the corresponding signed type for reflected integral type (function) |
|
(C++11) | checks if a type is a signed arithmetic type (class template) |
|
(C++11) | checks if a type is an arithmetic type (class template) |
|
(C++11) | obtains the corresponding signed type for the given integral type (class template) |
|
[static] | identifies signed types (public static member constant of std::numeric_limits<T>) |
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