Implementation-defined behavior是指在编程语言中,在特定情况下编译器或者运行时环境可以自由选择具体行为的情况。一种IDB的行为在一个实现(compiler或者runtime)中可能与另一个实现不同,但在同一个实现中则是确定的。这种行为取决于编译器、操作系统、硬件等因素,并不是由语言标准所明确定义的。 举个例子来说,C语言中的整数溢出是一种ID
OpenMP Overview OpenACC Use Unified Parallel C (UPC) C++ Libraries Coarray C++ Use Cray C Extension Use Predefined Macro Use Run C and C++ Applications Debug Cray C and C++ Code Interlanguage Communication Implementation-defined Behavior Library and Linker Use ...
Implementation-defined behavior refers to the behavior exhibited by a program when specific details, such as those related to data representation, are not defined by the programming language's standard. This meansthat different implementations of the same programming language may exhibit different behavior...
Each item covered includes references to the ANSI that explains the implementation-defined behavior.Note This section describes the U.S. English-language version of the C compiler only. Implementations of Microsoft C for other languages may differ slightly....
wait-policy-var: Controls the desired behavior of waiting threads. The initial value ofwait-policy-varisPASSIVE. thread-limit-var: Controls the maximum number of threads participating in the OpenMP program. The initial value of thread-limit-var is 1024. ...
Implementation defined behavior is controlled by#pragmadirective. Syntax #pragmapragma-params(1) _Pragma(string-literal)(2)(since C++11) 1)Behaves in implementation-defined manner. 2)Removes theLprefix (if any), the outer quotes, and leading/trailing whitespace fromstring-literal, replaces each\"...
An implementation is required to define and document its behavior in these cases, but this list may be incomplete. Number of threads:If a parallel region is encountered while dynamic adjustment of the number of threads is disabled, and the number of threads requested for the parallel region exce...
而undefined behavior是指完全不确定的行为,也就是程序不应该写成这样。在JS这样的语言里是没有严格意义的undefined behavior的(JS spec只有一处提到undefined behavior,是在memory model章节,明确JS的内存模型不存在undefined behavior),如果程序不应该写成某个样子,会定义为抛出某种错误。
Applying the indirection operator to a null pointer results in an implementation-defined behavior. 如果将间接寻址运算符应用于null指针,则会导致由实现定义的行为。 msdn2.microsoft.com 5. If the pointer is null, the system initializes the slave's termios structure to an implementation-defined initial...
Hello, Usually any C Compiler User's GUIDE contains Appendix with C99 and C90 standard implementation defined behavior related sections. I couldn't find any