Ada 包含了很复杂的功能以支持实时(real-time),并发程序设计(concurrent programming)。错误可以作为异常(exception)来标示,并可以被明确地处理。Ada 也覆盖了系统编程(system programming);这需要对数据表示和系统特性访问的精确控制。最后,提供了预定义的标准程序包,包括输入输出、字符串处理、数值计算的基本函数和随机...
Ada 程序igtH吾言The Ada Programming Language 版权Copyright Ada程序设讣语言的版权隶属于网站VenusIC,允许任何用户翻阅传播批评等等, 只要读者想的岀的行为,都可以作用于本教材。唯一一条禁
Ada程序设计语言.doc,Ada 程序设计语言(The Ada Programming Language) 版权(Copyright) 《Ada 程序设计语言》的版权隶属于网站 VenusIC,允许任何用户翻阅、传播、批评等等,只要读者想的出的行为,都可以作用于本教材。唯一一条禁令则是:不允许恶劣地直接抄录本教材,并
Ada is a structured, statically typed, imperative, wide-spectrum, multi-paradigm, object-oriented high-level, ALGOL-like programming language, extended from Pascal and other languages. The language was developed in the late 1970s and early 1980s. Ada is named after Augusta Ada Byron (often now...
Thales will use the GNAT Pro High-Integrity Edition for DO-178B and the Ada 2005 language to build the Air Data Inertial Reference Unit (ADIRU) for the A350 XWB (Xtra Wide-Body). The ADIRU provides precise in-flight positioning information, and the new system will therefore need to be ce...
This makes sense in desktop programming, where there is a huge hardware and software infrastructure already prepared that we can take for granted and where a single line of code seems to be a "basic" programming statement. This does not work in the embedded world. ...
If a language is to be used for low-level programming, it needs to permit practices such as treating a bit pattern as an integer value at one point and a machine address elsewhere. This presents a dilemma, since such uses might not be memory safe. Memory safety violations can come from ...
3-1 3 Remember not to use an Ada reserved word for an interface element name. Also, avoid giving entities names of predefined Ada library units, types, constants, and subprograms. Follow the common Ada style of not hiding predefined language capabilities when choosing names for elements in Dev...
There is much more to be said about Ada packages, but that should be enough to start with. There is a special form of the use statement which can simply include an element (types only) from a package, consider: use type Ada.Calendar.Time; ...
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