//debug = Cffi::Function("strchr", [Cffi.String, Cffi.Int64], Cffi.String)
//print(debug.call(["Hello World", "r".ord()]), "\n")

/* malloc = Cffi::Function("malloc", [Cffi.UInt64], Cffi.Pointer)
free = Cffi::Function("free", [Cffi.UInt64], Cffi.Pointer)
print(Cffi::GcPointer(malloc.call([10]), free)) */

libm = Cffi::Library("/lib/libm.so.6")
sin = Cffi::Function(libm.sym("sin"), [Cffi.Float64], Cffi.Float64)
print(sin.call([0.4]), '\n')

/*
sin = Cffi::Function("sin", [Cffi.Float64], Cffi.Float64)
print(Cffi::call(sin, 1.5), "\n")

//fn = Cffi::function("getenv", [Cffi.String], Cffi.String)
//Cffi::call(fn, "PWD")

fopen = Cffi::Function("fopen", [Cffi.String, Cffi.String], Cffi.Pointer)
fwrite = Cffi::Function("fwrite", [Cffi.String, Cffi.UInt64, Cffi.UInt64, Cffi.Pointer], Cffi.UInt64)
fclose = Cffi::Function("fclose", [Cffi.Pointer], Cffi.Void)
fptr = Cffi::RcPointer(Cffi::call(fopen, "/tmp/a", "w"), fclose)
Cffi::call(fwrite, "ABCDEF", 1, 6, fptr.pointer!)

fread = Cffi::Function("fread", [Cffi.String, Cffi.UInt64, Cffi.UInt64, Cffi.Pointer], Cffi.UInt64)
fptr = Cffi::RcPointer(Cffi::call(fopen, "/tmp/a", "r"), fclose)
buffer = String::reserve(6)
Cffi::call(fread, buffer, 1, 6, fptr.pointer!)
print(buffer)
*/