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dllexport Struct pointers and returning uint8_t


dllexport Struct pointers and returning uint8_t

By : nguyen tuan
Date : October 25 2020, 07:10 PM
With these it helps
Do I need to create the struct with proper padding and alignment in c#
code :


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Struct Cannot take Constructor When using with __declspec(dllexport)

Struct Cannot take Constructor When using with __declspec(dllexport)


By : user2617875
Date : March 29 2020, 07:55 AM
wish help you to fix your issue typedefs are just aliases to the base type. This implies that typedefs are a compile time, not a link time construct.
In your sample code you are attempting to dllexport a typedef, of an anonymous struct - which is going to confuse the compiler on two levels: first, you're exporting an alias, which it doesn't want to do, and next, the struct itself is anonymous, so it can't even export that. Thirdly, the thing that looks like the constructor isn't. Its just a function with a weird name. A ctor has to have the name of the struct and, well, its anonymous.
code :
extern "C"__declspec(dllexport) struct PointCg
{
  double x;
  double y;
  PointCg(double xx, double yy);
};
How to export with __declspec(dllexport) struct defined in wrapped class?

How to export with __declspec(dllexport) struct defined in wrapped class?


By : Antonio C.
Date : March 29 2020, 07:55 AM
Does that help Is it possible to export a struct of an wrapped class without wrapping it (struct only contains enums and primitives)? Let say my wrapper looks like this: , I solved it simply by extracting the struct into its own header file.
Is it legal to type-cast pointers of different struct types (e.g. struct sockaddr * to struct sockaddr_in6 *)?

Is it legal to type-cast pointers of different struct types (e.g. struct sockaddr * to struct sockaddr_in6 *)?


By : Vivek Anil
Date : March 29 2020, 07:55 AM
gcc - How to combine __attribute__((dllexport)) and [[nodiscard]] in a struct definition?

gcc - How to combine __attribute__((dllexport)) and [[nodiscard]] in a struct definition?


By : user3203221
Date : March 29 2020, 07:55 AM
This might help you All of this applies to both dllexport and dllimport.
This seems to be a bug in the GCC parser.
Inject uint16_t value into uint8_t array using pointers?

Inject uint16_t value into uint8_t array using pointers?


By : toomanypockets
Date : March 29 2020, 07:55 AM
I wish this helpful for you The second version writes the most significant byte (with value 39) to myarray[2], and the least significant (with value 16) to myarray[3].
The first version will write the two bytes in an order determined by the endianness of your computer. Most modern computers are little-endian, meaning that the least significant byte of a multi-byte integer value comes first in memory - so this version will write the two bytes in the opposite order to the other version.
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