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W – word […] G – paragraph […] xR – inpage […] P – page […] A – absolute […] the x in the inpage alignment code can be any other alignment code. […] a segment can have the inpage attribute, meaning it must reside within a 256 byte page and can have the word attribute, meaning it must reside on an even numbered byte.
Clang becomes the only C compiler in the FreeBSD base system, with the removal of GCC. [60] 24 March 2020 Clang 10.0.0 released: 2 April 2020: Clang becomes default compiler in OpenBSD 6.7 on powerpc. [61] 12 October 2020 Clang 11.0.0 released: 21 December 2020: Clang becomes default compiler in OpenBSD 6.9 on mips64el. [62] 14 April 2021 Clang ...
The C standard library, sometimes referred to as libc, [1] is the standard library for the C programming language, as specified in the ISO C standard. [2] Starting from the original ANSI C standard, it was developed at the same time as the C POSIX library, which is a superset of it. [3]
The combination of the Clang frontend and LLVM backend is named Clang/LLVM or simply Clang. The name LLVM was originally an initialism for Low Level Virtual Machine . However, the LLVM project evolved into an umbrella project that has little relationship to what most current developers think of as a virtual machine .
GCC and Clang can be made to use a similar calling convention by using __stdcall with the regparm function attribute or the -mregparm=3 switch. (The stack order is inverted.) It is also possible to produce a caller clean-up variant using cdecl or extend this to also use SSE registers. [18]
Add __has_c_attribute allowing the availability of an attribute to be checked by preprocessor directives. [ 21 ] (see " C++ compatibility" group for new attribute feature) Add __VA_OPT__ functional macro for variadic macros which expands to its argument only if a variadic argument has been passed to the containing macro.
An abstract syntax tree (AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code) written in a formal language.
Python's runtime does not restrict access to such attributes, the mangling only prevents name collisions if a derived class defines an attribute with the same name. On encountering name mangled attributes, Python transforms these names by prepending a single underscore and the name of the enclosing class, for example: >>>