hello(); //Call it like a normal function... cin.get(); }However, once the program is compiled, the call to hello(); will be replaced by the code making up the function. A WORD OF WARNING: Inline functions are very good for saving time, but if you use them too often or with...
-finline-small-functions Integrate functions into their callers when their body is smaller than expected function call code (so overall size of program gets smaller). The compiler heuristically decides which functions are simple enough to be worth integrating in this way. This inlining applies to ...
C++引进了内联函数(inline function)的概念。 宏替换实质上是文字替换。内联函数与一般函数不同的是,在进行程序的编译时,编译器将内联函数的目标代码作拷贝并将其插入到调用内联函数的地方。 例1.7 内联函数的使用 #include "iostream.h" inline double circle(double r) {return 3.1416*r*r;} int main() ...
-fno-branch-count-reg -fno-default-inline -fno-defer-pop -fno-function-cse -fno-guess-branch-probability -fno-inline -fno-math-errno -fno-peephole -fno-peephole2 -funsafe-math-optimizations -ffinite-math-only -fno-trapping-math -fno-zero-initialized-in-bss -fomit-frame-pointer -foptimize-...
常用的并行计算方法中,有一种SPMD(Single-Program Multiple-Data)数据并行的方法,简单说就是将数据分片,每片数据经过完整的一个数据处理流程。这个就能和昇腾AI处理器的多核匹配上了,我们将数据分成多份,每份数据的处理运行在一个核上,这样每份数据并行处理完成,整个数据也就处理完了。Ascend C是SPMD(Single-Program...
cmake_minimum_required(VERSION 3.20.0) project(Testing CXX) add_library(program program.cpp) add_executable(main main.cpp) target_link_libraries(main program) main目标只是提供了所需的main()函数。program目标包含了所有的逻辑。现在我们可以通过创建另一个包含其自己的main()和测试逻辑的可执行文件来测试...
when the function is called: inline void toggle_led(); The console text (command line and errors) follows: *** Build of configuration Debug for project MSP430-flash1 *** C:\Program Files (x86)\Texas Instruments\ccsv4\utils\gmake\gmake -k all 'Building...
这就是 VC++6.0给我们带来的:预编译头文件。预编译头文件(一般扩展名为.PCH),是把一个工程中较稳定的代码预先编译好放在一个文件(.PCH)里。 这些预先编译好的代码可以是任何的C/C++代码,甚至可以是inline函数,只是它们在整个工程中是较为稳定的,即在工程开发过程中不会经常被修改的 代码。
Macros are handled by the pre-compiler, and are thus guaranteed to be inlined. Macros are used for short operations and it avoids function call overhead. It can be used if any short operation is being done in program repeatedly. Function-like macros are very beneficial when the same block...
单片机最初是使用汇编语言编程的,但汇编语言与硬件相关,不同厂家的不同型号的单片机指令一般都有不同,甚至差别很大,造成在一种型号单片机上的程序,如果要使用另外一种型号来实现,基本就要重新编写。而且使用汇编语言编程,比较繁琐,开发效率比较低。现在开发单片机大多已使用高级语言C语言来编程。