Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 years ago.
Improve this question
I am working on one embedded project based on c language.
Can you explain me following declaration meaning:
#define FILE_APPVENDORPARAM APP_NAME"VENDOR"
Before the line you show, there must be another #define that defines APP_NAME, for example like this:
#define APP_NAME "SomeName"
Then this line:
#define FILE_APPVENDORPARAM APP_NAME"VENDOR"
defines FILE_APPVENDORPARAM as "SomeName""VENDOR" which is the same thing as "SomeNameVENDOR"
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 4 years ago.
Improve this question
I am coding a program and I wonder on which OS my program will run.
How can I get the OS info (ex - Windows 10 or not) at the code?
※ I just want to show different results whether it's Windows 10 or not
#ifdef _WIN32
printf("Windows\n");
#else
printf("Not Windows\n");
#endif
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 5 years ago.
Improve this question
I want to have some information about (#include)
in the beginning of my C program.
What does this library do?I have search before and found nothing.....
#include is a preprocessor directive, not a library. You can read below Wikipedia page about it.
https://en.wikipedia.org/wiki/Include_directive
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
#include <stdio.h>
#include <string.h>
struct{int x,y;}x;
struct{int x,y;}y;
int main(void)
{
return 0;
}
Are theses declararations legal on an individual basis these structs? Could both declarations appear as shown in the code or program?
Wen a structures is declared, it represents a new scope. Therefore, each structure has it own name space. So, nothing wrong with the above snippet.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 7 years ago.
Improve this question
I'm learning C. I wonder whether there is an instruction or command to recognize the type of the variable.
To be more practical: I have a program which works with integers, I want to show an error message if the user inserts a real number when running the program.
Hope you can help!
This is not part of the C standard, but GCC has the typeof keyword.
You have to be using the GCC compiler for it though.
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 9 years ago.
Improve this question
I'd love to create some part dynamically. Would it be possible to use offsetof with string as a second argument? Something like:
offsetof( tic, "close.v");
Or can I convert char to member anyhow?
The offsetof construct is a compile time operation. It can't be used with anything that is generated dynamically.