My code is as following: (this is the code for constructor
AlgorithmOptions_t)
AlgorithmOptions_t(v8::Isolate* isolate, v8::Handle<v8::Object> options_v8) {
v8::Handle<v8::Value> type_handle = options_v8->Get(
v8::String::NewFromUtf8(isolate, "type"));
v8::Handle<v8::Value> max_iteration_handle = options_v8->Get(
v8::String::NewFromUtf8(isolate, "max_iteration"));
v8::Handle<v8::Value> tolerance_handle = options_v8->Get(
v8::String::NewFromUtf8(isolate, "tolerance"));
v8::Handle<v8::Value> learning_rate_handle = options_v8->Get(
v8::String::NewFromUtf8(isolate, "learning_rate"));
//v8::assert(type_handle->IsInteger(), "Expected integer algorithm type");
//v8::assert(max_iteration_handle->IsInteger(), "Expected integer number of
iterations");
type = (algorithm_type)type_handle->IntegerValue();
max_iteration = max_iteration_handle->IntegerValue();
tolerance = tolerance_handle->NumberValue();
learning_rate = learning_rate_handle->NumberValue();
}
And the output compiler is as following:
*In constructor ‘AlgorithmOptions_t::AlgorithmOptions_t(v8::Isolate*,
v8::Handle<v8::Object>)’:*
*/home/haohanwang/CLion/GenAMap_V2/src/algorithm/AlgorithmOptions.hpp:25:4:
error: ‘NewFromUtf8’ is not a member of ‘v8::String’*
* v8::String::NewFromUtf8(isolate, "type"));*
* ^*
*/home/haohanwang/CLion/GenAMap_V2/src/algorithm/AlgorithmOptions.hpp:27:4:
error: ‘NewFromUtf8’ is not a member of ‘v8::String’*
* v8::String::NewFromUtf8(isolate, "max_iteration"));*
* ^*
*/home/haohanwang/CLion/GenAMap_V2/src/algorithm/AlgorithmOptions.hpp:29:4:
error: ‘NewFromUtf8’ is not a member of ‘v8::String’*
* v8::String::NewFromUtf8(isolate, "tolerance"));*
* ^*
*/home/haohanwang/CLion/GenAMap_V2/src/algorithm/AlgorithmOptions.hpp:31:4:
error: ‘NewFromUtf8’ is not a member of ‘v8::String’*
* v8::String::NewFromUtf8(isolate, "learning_rate"));*
Yes, I am trying to build an add-on so that I can call my c++ code from
node.
Sorry that I am not entirely sure what node-gyp is. I am pretty new to
node, sorry about that.
On Sunday, March 20, 2016 at 4:10:12 AM UTC-4, Ben Noordhuis wrote:
>
> On Sat, Mar 19, 2016 at 8:35 PM, Haohan Wang <[email protected]
> <javascript:>> wrote:
> > Node version (given by command node -v) is v5.8.0
> >
> > v8 version (given by command node -e 'console.log(process.versions.v8);'
> )
> > is 4.6.85.31
> >
> > Probably this is the problem then. How should I make them consistent?
> > I thought once I install node, these files are installed with the same
> > version, but it seems not this case. And apt-get upgrade seems not
> working
> > either.
> >
> > Thanks.
>
> That version of node.js (and V8) is new enough to have
> v8::String::NewFromUtf8. Can you post your code and the _exact_
> output from your compiler? Are you building your add-on with
> node-gyp? You are building an add-on, aren't you?
>
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