jni_ vec_ sub_ scalar
fun jni_vec_sub_scalar(env: CPointer<JNIEnvVar>, thisObject: jobject, a: jdoubleArray, aOffset: jint, aSize: jint, b: jdouble)
fun jni_vec_sub_scalar(env: CPointer<JNIEnvVar>, thisObject: jobject, a: jdoubleArray, aOffset: jint, aSize: jint, b: jdouble)