Wrap your C++ code in C.
Create a header which is simply:
cwrapper.h:
void printSomething()
Then you can have a cwrapper.cpp instead of your wrapper.hpp:
#include <iostream>
extern "C" {
void printSomething() {
printf("Hello World");
}
}
Your C++ code will produce a function named printSomething with C linkage
semantics, and Go can call that without issue. By hiding <iostream> from
CGO, you don't have it trying to find C++ headers.
On Thu, Apr 11, 2019 at 8:49 AM <aleksandar.valc...@gmail.com> wrote:
> Hi *,
>
> I have following C++ code:
>
> wrapper.hpp:
>
> #include <iostream>
>
> void printSomething() {
> printf("Hello World");
> }
>
> And corresponding main.go:
>
> package main
>
> // #cgo CXXFLAGS: -I.
> // #cgo CFLAGS: -I.
> // #cgo LDFLAGS:
> // #include "wrapper.hpp"
> import "C"
>
> func main() {
> C.print()
> }
>
> Unfortunately the result of "go build ." is:
>
> # _/home/avalchev/Sources/apt
> In file included from ./main.go:6:0:
> ./wrapper.hpp:1:20: fatal error: iostream: No such file or directory
> #include <iostream>
> ^
> compilation terminated.
>
>
> Basically I'm trying to create debian's libapt-pkg wrapper, but the only
> workaround I tried (and it works) is to create static library, but this
> reduces portability a lot.
>
> Is there any way to make this work ?
>
>
>
>
>
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