Static Assertion Failed Signal And Slot Arguments Are Not Compatible

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A static assert declaration may appear at namespace and block scope (as a block declaration) and inside a class body (as a member declaration) If boolconstexpr returns true, this declaration has no effect. C:/ Qt / Qt5. 0 / 5.7 / mingw5332 / include / QtCore / qglobal. H: 746: 47: error: static assertion failed: Signal and slot arguments are not compatible. #define QSTATICASSERTX(Condition, Message) staticassert(bool(Condition), Message).

C++Arguments

Static Assertion Failed Signal And Slot Arguments Are Not Compatible In Computer

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Performs compile-time assertion checking

[edit]Syntax

static_assert(bool_constexpr,message)(since C++11)
static_assert(bool_constexpr)(since C++17)

[edit]Explanation

bool_constexpr - a contextually converted constant expression of type bool
message -optional (since C++17)string literal that will appear as compiler error if bool_constexpr is false

A static assert declaration may appear at namespace and block scope (as a block declaration) and inside a class body (as a member declaration)

If bool_constexpr returns true, this declaration has no effect. Otherwise a compile-time error is issued, and the text of message, if any, is included in the diagnostic message.

Static assertion failed signal and slot arguments are not compatible games

message can be omitted.

(since C++17)

[edit]Note

Static Assertion Failed Signal And Slot Arguments Are Not Compatible Games

Since message has to be a string literal, it cannot contain dynamic information or even a constant expression that is not a string literal itself. In particular, it cannot contain the name of the template type argument.

[edit]Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior
CWG 2039 C++11 only the expression before conversion is required to be constant the conversion must also be valid in a constant expression

[edit]Example

Possible output:

[edit]See also

C documentation for static_assert

Static Assertion Failed Signal And Slot Arguments Are Not Compatible In Minecraft

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