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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 ...
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.
This article, however, focuses on differences that cause conforming C code to be ill-formed C++ code, or to be conforming/well-formed in both languages but to behave differently in C and C++. Bjarne Stroustrup , the creator of C++, has suggested [ 4 ] that the incompatibilities between C and C++ should be reduced as much as possible in order to ...
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]
All code formatted in the GNU style has the property that each closing brace, bracket or parenthesis appears to the right of its corresponding opening delimiter, or in the same column. Being tightly integrated with the GNU system, GNU Emacs provides automatic formatting of C code to match the GNU coding standards. [ 1 ]
Non-POD return values or values larger than 64-bits, the calling code will allocate space and passes a pointer to this space via a hidden parameter on the stack. The called function writes the return value to this address. Stack aligned on 4-byte boundary. stdcall: Microsoft: RTL (C) Callee Also supported by GCC. fastcall: Microsoft: ECX, EDX ...
GCC is a key component of the GNU toolchain which is used for most projects related to GNU and the Linux kernel. With roughly 15 million lines of code in 2019, GCC is one of the largest free programs in existence. [4] It has played an important role in the growth of free software, as both a tool and an example.
What inline keyword does is it makes a suggestion to the compiler to inline functions. -- Taku 20:52, Oct 25, 2004 (UTC) Obviously, but you can certainly have inlining without having inline functions (gcc will inline C functions in C90 with the appropriate flags, for example, and functional language compilers inline aggressively, although ...