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In the C and C++ programming languages, an inline function is one qualified with the keyword inline; this serves two purposes: . It serves as a compiler directive that suggests (but does not require) that the compiler substitute the body of the function inline by performing inline expansion, i.e. by inserting the function code at the address of each function call, thereby saving the overhead ...
[11] C++ is also more strict in conversions to enums: ints cannot be implicitly converted to enums as in C. Also, enumeration constants (enum enumerators) are always of type int in C, whereas they are distinct types in C++ and may have a size different from that of int. [needs update] In C++ a const variable must be initialized; in C this is ...
In computing, inline expansion, or inlining, is a manual or compiler optimization that replaces a function call site with the body of the called function. Inline expansion is similar to macro expansion, but occurs during compilation, without changing the source code (the text), while macro expansion occurs prior to compilation, and results in different text that is then processed by the compiler.
Mingw-w64 includes a port of the GNU Compiler Collection (GCC), GNU Binutils for Windows (assembler, linker, archive manager), a set of freely distributable Windows specific header files and static import libraries for the Windows API, a Windows-native version of the GNU Project's GNU Debugger, and miscellaneous utilities.
GNAT (Ada language frontend of the GCC suite), and LLVM uses the GCC syntax. [9] [10] The D programming language uses a DSL similar to the MSVC extension officially for x86_64, [11] but the LLVM-based LDC also provides the GCC-style syntax on every architecture. [12] MSVC only supports inline assembler on 32-bit x86. [5]
The detailed semantics of "the" ternary operator as well as its syntax differs significantly from language to language. A top level distinction from one language to another is whether the expressions permit side effects (as in most procedural languages) and whether the language provides short-circuit evaluation semantics, whereby only the selected expression is evaluated (most standard ...
Regarding language version support for C++ and C, since GCC 11.1 the default target is gnu++17, a superset of C++17, and gnu11, a superset of C11, with strict standard support also available. GCC also provides experimental support for C++20 and C++23. [46]
gcc and clang offer the -mno-red-zone flag to disable red-zone optimizations. If the callee is a variadic function , then the number of floating point arguments passed to the function in vector registers must be provided by the caller in the AL register.