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kkoopa seandunn ge3kusa carbuz l0ft3r kemitchell mattkrick erwanb bwolfjena unconed amilajack homelane satbir121 iceshub mkalo kvnkuschnode-lp_solve's Issues
set_timeout?
Any idea on why set_timeout isn't working? Things I tried:
- Uncommented out the code, rebuilt it with node-gyp
- changed the source code so it would take an
intinstead of along - changed the source code so the default
sectimeoutwas 5 seconds
Nothing seemed to work.
How to set binary constraint?
I am able to set my column constraint to an int but I want to define them as binary instead. I followed some of the source to the addColumn function in LinearProgram.js which will call setColumnInteger. I saw that will then call set_int -- is there a way to call set_bin? Or perhaps there is another way for me to set upper and lower bounds so that my variable can be 0 <= x1 <= 1
Is this compatible with Node 4.1+?
I upgrade my node version from 0.8.17 to 4.1 and now lo_solve stopped working.
I tried to do fresh npm install but still failed.
Do I suppose to do any other step?
Fails to build with Node v10.2.1
I don't know if this is still being maintained but I am currently on node v10.2.1 and installing this package with v0.2.13 fails with the following error:
/home/maks/.node-gyp/10.2.1/include/node/v8config.h:318:3: note: in definition of macro ‘V8_DEPRECATED’
318 | declarator attribute((deprecated(message)))
| ^~~~~~~~~~
../lp_solve.cc: In static member function ‘static Nan::NAN_METHOD_RETURN_TYPE LinearProgram::print_debugdump(Nan::NAN_METHOD_ARGS_TYPE)’:
../lp_solve.cc:2206:40: warning: ‘v8::String::Utf8Value::Utf8Value(v8::Localv8::Value)’ is deprecated: Use Isolate version [-Wdeprecated-declarations]
2206 | String::Utf8Value str_filename(info[0]);
| ^
In file included from /home/maks/.node-gyp/10.2.1/include/node/v8.h:26,
from /home/maks/.node-gyp/10.2.1/include/node/node.h:63,
from ../lp_solve.cc:1:
/home/maks/.node-gyp/10.2.1/include/node/v8.h:2822:28: note: declared here
2822 | explicit Utf8Value(Localv8::Value obj));
| ^~~~~~~~~
/home/maks/.node-gyp/10.2.1/include/node/v8config.h:318:3: note: in definition of macro ‘V8_DEPRECATED’
318 | declarator attribute((deprecated(message)))
| ^~~~~~~~~~
../lp_solve.cc: In static member function ‘static Nan::NAN_METHOD_RETURN_TYPE LinearProgram::get_nameindex(Nan::NAN_METHOD_ARGS_TYPE)’:
../lp_solve.cc:2597:39: warning: ‘v8::String::Utf8Value::Utf8Value(v8::Localv8::Value)’ is deprecated: Use Isolate version [-Wdeprecated-declarations]
2597 | String::Utf8Value str_varname(info[0]);
| ^
In file included from /home/maks/.node-gyp/10.2.1/include/node/v8.h:26,
from /home/maks/.node-gyp/10.2.1/include/node/node.h:63,
from ../lp_solve.cc:1:
/home/maks/.node-gyp/10.2.1/include/node/v8.h:2822:28: note: declared here
2822 | explicit Utf8Value(Localv8::Value obj));
| ^~~~~~~~~
/home/maks/.node-gyp/10.2.1/include/node/v8config.h:318:3: note: in definition of macro ‘V8_DEPRECATED’
318 | declarator attribute((deprecated(message)))
| ^~~~~~~~~~
In file included from /home/maks/.node-gyp/10.2.1/include/node/node.h:63,
from ../lp_solve.cc:1:
/home/maks/.node-gyp/10.2.1/include/node/v8.h: In instantiation of ‘void v8::PersistentBase::SetWeak(P*, typename v8::WeakCallbackInfo::Callback, v8::WeakCallbackType) [with P = node::ObjectWrap; T = v8::Object; typename v8::WeakCallbackInfo
::Callback = void ()(const v8::WeakCallbackInfonode::ObjectWrap&)]’:
/home/maks/.node-gyp/10.2.1/include/node/node_object_wrap.h:85:78: required from here
/home/maks/.node-gyp/10.2.1/include/node/v8.h:9238:16: warning: cast between incompatible function types from ‘v8::WeakCallbackInfonode::ObjectWrap::Callback’ {aka ‘void ()(const v8::WeakCallbackInfonode::ObjectWrap&)’} to ‘Callback’ {aka ‘void ()(const v8::WeakCallbackInfo&)’} [-Wcast-function-type]
9238 | reinterpret_cast(callback), type);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/maks/.node-gyp/10.2.1/include/node/v8.h: In instantiation of ‘void v8::PersistentBase::SetWeak(P, typename v8::WeakCallbackInfo::Callback, v8::WeakCallbackType) [with P = Nan::ObjectWrap; T = v8::Object; typename v8::WeakCallbackInfo
::Callback = void ()(const v8::WeakCallbackInfoNan::ObjectWrap&)]’:
../node_modules/nan/nan_object_wrap.h:66:61: required from here
/home/maks/.node-gyp/10.2.1/include/node/v8.h:9238:16: warning: cast between incompatible function types from ‘v8::WeakCallbackInfoNan::ObjectWrap::Callback’ {aka ‘void ()(const v8::WeakCallbackInfoNan::ObjectWrap&)’} to ‘Callback’ {aka ‘void (*)(const v8::WeakCallbackInfo&)’} [-Wcast-function-type]
make: *** [lp_solve.target.mk:106: Release/obj.target/lp_solve/lp_solve.o] Error 1
make: Leaving directory '/mnt/data/coding/mw/node_modules/lp_solve/build'
gyp ERR! build error
gyp ERR! stack Error:makefailed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:262:23)
gyp ERR! stack at ChildProcess.emit (events.js:182:13)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
gyp ERR! System Linux 5.1.16-arch1-1-ARCH
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /mnt/data/coding/mw/node_modules/lp_solve
gyp ERR! node -v v10.2.1
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm WARN rollback Rolling back [email protected] failed (this is probably harmless): ENOTEMPTY: directory not empty, rmdir '/mnt/data/coding/mw/node_modules/lp_solve/node_modules/bindings'
npm WARN rollback Rolling back [email protected] failed (this is probably harmless): ENOTEMPTY: directory not empty, rmdir '/mnt/data/coding/mw/node_modules/lp_solve/node_modules/nan'
npm WARN rollback Rolling back [email protected] failed (this is probably harmless): ENOTEMPTY: directory not empty, rmdir '/mnt/data/coding/mw/node_modules/lp_solve/node_modules/bindings'
npm WARN [email protected] No description
npm WARN [email protected] No repository field.npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] install:node-gyp rebuild
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.npm ERR! A complete log of this run can be found in:
npm ERR! /home/maks/.npm/_logs/2019-07-11T06_42_38_936Z-debug.log
fails to build on recent versions of node
Tried to install on v 0.12 and v4.0.0, from other packages, looks like this probably goes back to v0.11.
In file included from ../lp_solve.cc:2:
../node_modules/nan/nan.h:318:13: error: no member named 'New' in 'v8::String'
return _NAN_ERROR(v8::Exception::Error, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:322:5: error: no member named 'ThrowException' in namespace 'v8'
_NAN_THROW_ERROR(v8::Exception::Error, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:11: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
~~~~^
../node_modules/nan/nan.h:322:5: error: no member named 'New' in 'v8::String'
_NAN_THROW_ERROR(v8::Exception::Error, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:26: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
^~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:327:9: error: no type named 'ThrowException' in namespace 'v8'
v8::ThrowException(error);
~~~~^
../node_modules/nan/nan.h:334:65: error: no member named 'New' in 'v8::String'
v8::Local<v8::Value> err = v8::Exception::Error(v8::String::New(msg));
~~~~~~~~~~~~^
../node_modules/nan/nan.h:336:26: error: no member named 'New' in 'v8::String'
obj->Set(v8::String::New("code"), v8::Int32::New(errorNumber));
~~~~~~~~~~~~^
../node_modules/nan/nan.h:348:12: error: no member named 'New' in 'v8::String'
return _NAN_ERROR(v8::Exception::TypeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:352:5: error: no member named 'ThrowException' in namespace 'v8'
_NAN_THROW_ERROR(v8::Exception::TypeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:11: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
~~~~^
../node_modules/nan/nan.h:352:5: error: no member named 'New' in 'v8::String'
_NAN_THROW_ERROR(v8::Exception::TypeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:26: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
^~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:356:12: error: no member named 'New' in 'v8::String'
return _NAN_ERROR(v8::Exception::RangeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:360:5: error: no member named 'ThrowException' in namespace 'v8'
_NAN_THROW_ERROR(v8::Exception::RangeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:11: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
~~~~^
../node_modules/nan/nan.h:360:5: error: no member named 'New' in 'v8::String'
_NAN_THROW_ERROR(v8::Exception::RangeError, errmsg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:303:26: note: expanded from macro '_NAN_THROW_ERROR'
v8::ThrowException(_NAN_ERROR(fun, errmsg)); \
^~~~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:298:50: note: expanded from macro '_NAN_ERROR'
# define _NAN_ERROR(fun, errmsg) fun(v8::String::New(errmsg))
~~~~~~~~~~~~^
../node_modules/nan/nan.h:379:13: error: no member named 'smalloc' in namespace 'node'
, node::smalloc::FreeCallback callback
~~~~~~^
../node_modules/nan/nan.h:119:71: note: expanded from macro 'NAN_INLINE'
# define NAN_INLINE(declarator) inline __attribute__((always_inline)) declarator
^
../node_modules/nan/nan.h:389:12: error: no matching function for call to 'New'
return node::Buffer::New(data, size);
^~~~~~~~~~~~~~~~~
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:28:40: note: candidate function not viable: no known conversion from 'char *' to 'v8::Isolate *' for 1st argument
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate, size_t length);
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:31:40: note: candidate function not viable: no known conversion from 'char *' to 'v8::Isolate *' for 1st argument
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:36:40: note: candidate function not viable: requires 5 arguments, but 2 were provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:43:40: note: candidate function not viable: requires 3 arguments, but 2 were provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
In file included from ../lp_solve.cc:2:
../node_modules/nan/nan.h:393:12: error: no matching function for call to 'New'
return node::Buffer::New(size);
^~~~~~~~~~~~~~~~~
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:28:40: note: candidate function not viable: requires 2 arguments, but 1 was provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate, size_t length);
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:31:40: note: candidate function not viable: requires at least 2 arguments, but 1 was provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:36:40: note: candidate function not viable: requires 5 arguments, but 1 was provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
/Users/facil/.node-gyp/4.0.0/include/node/node_buffer.h:43:40: note: candidate function not viable: requires 3 arguments, but 1 was provided
NODE_EXTERN v8::MaybeLocal<v8::Object> New(v8::Isolate* isolate,
^
In file included from ../lp_solve.cc:2:
../node_modules/nan/nan.h:400:26: error: no member named 'Use' in namespace 'node::Buffer'
return node::Buffer::Use(data, size);
~~~~~~~~~~~~~~^
../node_modules/nan/nan.h:668:49: error: too few arguments to function call, single argument 'isolate' was not specified
v8::Local<v8::Object> obj = v8::Object::New();
~~~~~~~~~~~~~~~ ^
/Users/facil/.node-gyp/4.0.0/include/node/v8.h:2933:3: note: 'New' declared here
static Local<Object> New(Isolate* isolate);
^
In file included from ../lp_solve.cc:2:
../node_modules/nan/nan.h:669:14: error: no member named 'NewSymbol' in 'v8::String'; did you mean 'IsSymbol'?
obj->Set(NanSymbol("callback"), fn);
^~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:159:38: note: expanded from macro 'NanSymbol'
#define NanSymbol(value) v8::String::NewSymbol(value)
~~~~~~~~~~~~^
/Users/facil/.node-gyp/4.0.0/include/node/v8.h:1726:8: note: 'IsSymbol' declared here
bool IsSymbol() const;
^
In file included from ../lp_solve.cc:2:
../node_modules/nan/nan.h:669:14: error: call to non-static member function without an object argument
obj->Set(NanSymbol("callback"), fn);
^~~~~~~~~~~~~~~~~~~~~
../node_modules/nan/nan.h:159:38: note: expanded from macro 'NanSymbol'
#define NanSymbol(value) v8::String::NewSymbol(value)
~~~~~~~~~~~~^~~~~~~~~
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make: *** [Release/obj.target/lp_solve/lp_solve.o] Error 1
gyp ERR! build error
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:270:23)
gyp ERR! stack at emitTwo (events.js:87:13)
gyp ERR! stack at ChildProcess.emit (events.js:172:7)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Darwin 14.5.0
gyp ERR! command "/usr/local/bin/node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/facil/Code/SBRP/node_modules/lp_solve
gyp ERR! node -v v4.0.0
gyp ERR! node-gyp -v v3.0.1
gyp ERR! not ok
npm ERR! Darwin 14.5.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "lp_solve" "--save"
npm ERR! node v4.0.0
npm ERR! npm v2.14.2
npm ERR! code ELIFECYCLE
npm ERR! [email protected] install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the lp_solve package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node-gyp rebuild
npm ERR! You can get their info via:
npm ERR! npm owner ls lp_solve
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! /Users/facil/Code/SBRP/npm-debug.log
semaphore
should be included as a dependency in package.json or removed from project
async fails test incossitently with certain count/batch paramaters
With small numbers of (1<count*batch<~20) the test fails
With large number (count * batch > 50) it works fine
With 1 (count * batch = 1) it works fine
For me, 1< count*batch<9 fails.
The call actually returns an error even though lp_solve solve return ok.
Can node-lp_solve gets duals variables?
Hi, I am tying to do Data envelopment analysis(DEA) with node-lp_solve to solve linear programming problems. So far, I can get the correct solution and objectvalue, but I can't get duals variables (because DEA need them). So is there any possible I can get duals variables by some function?
Add TypeScript declaration file
For those who are using TypeScript, I've created a declaration file for "lp_solve".
This file can be merged into this repository (until then you can copy and paste it into your own project)
index.d.ts
declare module "lp_solve" {
type ContraintTypes = "LE" | "EQ" | "GE";
type SolveResult =
"UNKNOWNERROR" |
"DATAIGNORED" |
"NOBFP" |
"NOMEMORY" |
"NOTRUN" |
"OPTIMAL" |
"SUBOPTIMAL" |
"INFEASIBLE" |
"UNBOUNDED" |
"DEGENERATE" |
"NUMFAILURE" |
"USERABORT" |
"TIMEOUT" |
"RUNNING" |
"PRESOLVED";
class LinearProgram {
constructor();
addColumn(name?: string, isInteger?: boolean, isBinary?: boolean): string;
setObjective(row: Row, minimize?: boolean): void;
addConstraint(row: Row, constraint: ContraintTypes, constant: number, name?: string): void;
dumpProgram(): string;
solve(): Solution;
/**
* sets the amount of information to be reported by solve
*/
setVerbose(verb: number): { verbosity: number; errorMsg?: string };
getObjectiveValue(): number;
getSolutionVariables(): number[] | null;
get(variable: string): number | undefined | null;
calculate(row: Row): number;
Columns: { [index: string]: number };
modelNames: boolean;
localConstraints: boolean;
lprec: LP;
}
interface LP {
get_Nrows(): number;
del_constraint(index: number): boolean;
}
/**
* class to hold factor:attribute pairs
*/
class Row {
constructor(clone?: Row);
/**
* adds a row or a variable:factor to this row
*/
Add(b: string, c?: number): Row;
/**
* subtract a row or variable:factor to this row
*/
Subtract(b: string, c?: number): Row;
/**
* multiplies all the factors by a fixed value
*/
Multiply(v: number): Row;
/**
* converts an object of vairable:factor to an equation for LP Solve
*/
ToText(): string;
raw: { [index: string]: number };
}
interface Solution {
code: number;
description: SolveResult;
}
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