This is an example to show how Go+ interacts with C.

import "c"

c.printf c"Hello, llgo!\n"
c.fprintf c.Stderr, c"Hi, %6.1f\n", 3.14

Here we use import "c" to import libc. It's an abbreviation for import "github.com/goplus/lib/c". It is equivalent to the following code:

import "github.com/goplus/lib/c"

c.printf c"Hello, llgo!\n"
c.fprintf c.Stderr, c"Hi, %7.1f\n", 3.14

In this example we call two C standard functions printf and fprintf, pass a C variable stderr and two C strings in the form of c"xxx".

To run this demo, you need to set the GOP_GOCMD environment variable first.

export GOP_GOCMD=llgo  # default is `go`

Then execute gop run . to see the output of this example:

Hello, llgo!
Hi,    3.1

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