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LLGo is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python. Now you can import a Python library in LLGo. For exa
by xushiwei 2y ago
LLGo is a Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python.
Now you can import a Python library in LLGo. For example:
package main
import (
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/py"
"github.com/goplus/llgo/py/math"
)
func main() {
x := math.Sqrt(py.Float(2))
c.Printf(c.Str("sqrt(2) = %f\n"), x.Float64())
}
Here, We call py.Float(2) to create a Python number 2, and pass it to Python’s math.sqrt to get x. Then use x.Float64() to convert x to Go's float64 type, and print the value through C printf.
Let's look at a slightly more complex example. For example, we use numpy to calculate:
package main
import (
"github.com/goplus/llgo/c"
"github.com/goplus/llgo/py"
"github.com/goplus/llgo/py/numpy"
)
func main() {
a := py.List(
py.List(1.0, 2.0, 3.0),
py.List(4.0, 5.0, 6.0),
py.List(7.0, 8.0, 9.0),
)
b := py.List(
py.List(9.0, 8.0, 7.0),
py.List(6.0, 5.0, 4.0),
py.List(3.0, 2.0, 1.0),
)
x := numpy.Add(a, b)
c.Printf(c.Str("a+b = %s\n"), x.Str().CStr())
}
Here we define two 3x3 matrices a and b, add them to get x, and then print the result.