I've only seen examples where it's used in place of a magic number but i don't see the point in just giving that value to a variable instead. Function(a, b) note that file is one of python's core modules, so i suggest you change the filename of file.py to something else You'll need to complete a few actions and gain 15 reputation points before being able to upvote
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Instead, you can save this post to reference later. The #define directive is a preprocessor directive The preprocessor replaces those macros by their body before the compiler even sees it Think of it as an automatic search and replace of your source code
A const variable declaration declares an actual variable in the language, which you can use.well, like a real variable Take its address, pass it around, use it, cast/convert it, etc I'm working with the hcs12 mcu, and this was part of the library I'm just wondering what the 1u, 2u, 4u, 8u.means in this code
I'm still learning how to use classes, please try to explain thi.
How do i define a function with optional arguments Asked 13 years, 7 months ago modified 1 year, 3 months ago viewed 1.2m times I am trying to write something like this #define cov_on(x) \ #ifdef coverage_tool \ _pragma (coverage #x) #endif is there any way to define cov_on like this
I know what i have done above is wrong as i can't have #ifdef inside #define (# is not an allowed character in #define) So is there any solution? I know that this is a long time after the original query, but this may still be useful
This can be done in gcc using the stringify operator #, but it requires two additional stages to be defined first
#define xstr(x) str(x) #define str(x) #x the value of a macro can then be displayed with #pragma message the value of abc 3.4 stringification in the gcc online. Mapped volumes can either be files/directories on the host machine (sometimes called bind mounts in the documentation) or they can be docker volumes that can be managed using docker volume commands
If you want to map a file or directory. First, import function from file.py From file import function later, call the function using
