README.md

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

import "C"

C.printf C"Hello, c2go!\n"
C.fprintf C.stderr, C"Hi, %7.1f\n", 3.14

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

import "C/github.com/goplus/libc"

C.printf C"Hello, c2go!\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".

Run gop run . to see the output of this example:

Hello, c2go!
Hi,     3.1