UnlikeAssertExpressions,StaticAsserts are always checked and evaluted by the compiler unless they appear in an unsatisfied conditional. voidfoo() {if(0) {assert(0);// never tripsstaticassert(0);// always trips}version(BAR) { }else{staticassert(0);// trips when version BAR is not defined...
UnlikeAssertExpressions,StaticAsserts are always checked and evaluted by the compiler unless they appear in an unsatisfied conditional. voidfoo() {if(0) {assert(0);// never tripsstaticassert(0);// always trips}version(BAR) { }else{staticassert(0);// trips when version BAR is not defined...
Preprocessor is part of C compiler, which evaluates preprocessor directives in the final token stream passed to the compiler. By using conditional inclusion statements different code can be included in the program depending on the situation at the time of compilation. ...
Directivesis a new construct in the AL language that specifies how the AL compiler treats an enclosed section of code. The same concept is known in other languages. The specific directive instructions must be supported by the compiler. You can't create custom preprocessing instructions. ...
Compiler Messages Compiler Messages '-' expected '!' requires its left operand to have a type parameter, class or interface type, but this operand has the type '<type>' '#Else' must be preceded by a matching '#If' or '#ElseIf' '#ElseIf' cannot follow '#Else' as part of an '#...
These are typically constant values defined in a header file, or on the compiler command line. For example:#if VER < 3 && DEF_OPEN != 0...In this example, two condition variables are used: VER and DEF_OPEN. Each variable value can be specified using the Edit Condition command. See:...
defined(DCBA) && (ABCD < 2*4-3)std::cout<<"3: yes\n";#endif// Note that if a compiler does not support C++23's #elifdef/#elifndef// directives then the "unexpected" block (see below) will be selected.#ifdef CPUstd::cout<<"4: no1\n";#elifdef GPUstd::cout<<"4: no2\...
The new way is thread-safe because the compiler generates code to evaluateSendNewsone time only, keeping the result in a temporary variable. You need to explicitly call theInvokemethod because there is no null-conditional delegate invocation syntaxSendNews?(String)....
The Elements compiler provides the following defines that can be used with{$IF}(Oxygene) and#ifdef(C# and Swift) and relatedCompiler Directivesto doconditional compilationbased on compiler version or target platform. The defines listed here are provided intrinsically by the compiler, but they can ...
*** CompilerVersion (Delphi 6 or later) can be used with conditional directives like {$IF CompilerVersion >= 20} {$DEFINE CanUnicode} {$IFEND} or using code: if System.CompilerVersion >= 22 then <do something>;