I use the keyword extern in front of function declarations in headers for consistency — to match the extern in front of variable declarations in headers. Many people prefer not to use extern in …

Jan 31, 2009 · In C, extern is implied for function prototypes, as a prototype declares a function which is defined somewhere else. In other words, a function prototype has external linkage by …

Aug 5, 2012 · I see in one place that Arduino uses 'standard' C, and in another that it uses 'standard' C++, so on and so forth. Which is it?

On the use of a subset of C++ for use with embedded systems: there is now a MISRA C++ standard, which may be worth a look. EDIT: See also this question, which led to a debate …

Aug 15, 2012 · I have 2 projects decoder and dec in my visual studio. One has C code and other has C++ code using stl respectively.How do I instantiate the c++ classes in my c code inside …

Dec 4, 2012 · In a C++ project, including .h files of C source files will cause many errors because of different standards between C and C++. How can I use C source files in a C++ project (or in …

Feb 25, 2010 · Why artificially limit your code to C? I started off with learning C, but then jumped straight into C++ simply because it supports OO and was also required for subsequent work. …

Aug 2, 2014 · Here's what the C standard says (section 7.1.3): All identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any …

Jul 15, 2012 · 89 c is not the abbreviation of vector in English, so why use c() to define a vector in R?

May 22, 2016 · I know that Python provides an API so you can call Python interpreter in C code, but what I want is the opposite. My program needs to use some C API, so the code must be …