Objective-C 中使用@来表示其对C语言的扩展,由编译器提供支持,也叫做compiler directives,比如@interface, @implementation等,下面一一介绍: @interface 相当于类的声明,像是C++中.h文件中包含的类声明信息。跟Java中的interface是不一样的。interface file就是.h文件。在声明一个新类时,可以注意一下信息: 使用@pub...
The behavior of the conditional compilation directives is not the same as it is in other languages. For example, you cannot use Boolean expressions involving symbols, and true and false have no special meaning. Symbols that you use in the if directive must be defined by the command line or ...
Acest conținut nu este disponibil în limba dvs. Iată versiunea în limba engleză.Căutare C# language reference Language version Types Keywords Operators and expressions Statements Special characters Attributes read by the compiler Unsafe code and pointers Preprocessor directives Compiler opti...
Methods, systems and computer program products are provided for creating and compiling source program code using one or more compiler directives a programming environment. The compiler directives may provide information on how to compile the source program code. The compiler directives may apply to the...
The options specified for the ACF attribute [allocate] represent conflicting directives. For example, specify either the option all_nodes or the option single_node, but not both. MIDL2212 error while writing to file An error occurred while writing to the file. This condition can be caused by...
The files mentioned in source location directives starting with this prefix will be included in the dependency list. Default Output File Name The output is generated in stdout by default. 4.2.2.13. --generate-nonsystem-dependencies (-MM) Same as --generate-dependencies but skip header ...
Compiler warning (level 1) C5202 a global module fragment can only contain preprocessor directives Compiler warning (level 1) C5203 a parenthesized declarator name after 'explicit' will be considered an explicit-specifier in C++20 Compiler warning (level 3, off) C5204 'type-name': class has ...
if(options.directives) { finalOptions.directives = extend( Object.create(baseOptions.directives ||null), options.directives ); } // copy other options for(varkeyinoptions) { if(key !== 'modules' && key !== 'directives') { finalOptions[key] = options[key]; ...
Use compiler directives. For example, tell the compiler to use a function-calling convention that’s faster than the default one. Use compiler-intrinsic functions. An intrinsic function is a special function whose implementation is provided automatically by the compiler. The compiler has an intimate...
-dI Print include directives in -E mode in addition to normal output -disable-free Disable freeing of memory on exit -disable-llvm-verifier Don't run the LLVM IR verifier pass -dM Print macro definitions in -E mode instead of normal output -dwarf-version=<value> Set DWARF version ...