c++ - what does this loop means: for(j,0,np) - 


inline string search_prod(string p) //returns concatenated string of variables can produce string p     {         int j,k;         string r="";         for(j,0,np)         {             k=1;             while(gram[j][k] != "")             {                 if(gram[j][k] == p)                 {                     r=concat(r,gram[j][0]);                 }                 k++;             }         }            return r;     }

i have never seen loop before.

okay. @ashishjohn question solvable.

in provided link can see define in beginning changes syntax of loops:

#define for(i,a,b) for(i=a;i<b; i++)

so for(j,0,np) converted preprocessor to:

for (j=0; j<np; j++)

which normal loop. np declared in file , nothing global integer variable.

however, @molbdnilo pointed out correctly standard (n4296) forbids declaration of macros override existing keywords:

17.6.4.3.1 macro names

  1. a translation unit includes standard library header shall not #define or #undef names declared in standard library header.

  2. a translation unit shall not #define or #undef names lexically identical keywords, identifiers listed in table 2, or attribute-tokens described in 7.6

therefore may or may not behave described it.


Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

reflection - How to access the object-members of an object declaration in kotlin -

say have following, nested object declaration: object father { val fathersfield = "value" object child { val childsfield = 3.141592654 } } when use reflection starting father , i'm able find field fathersfield no member referencing child instance. is possible find inner object declarations via reflection? , if so, how? use nestedclasses kotlin-reflect : father::class.nestedclasses.find { it.simplename == "child" } or, @s1m0nw1 suggested, use java reflection , convert class kclass .kotlin if needed: father::class.java.classes.first { it.simplename == "child" }.kotlin
Read more

php - Doctrine Query Builder Error on Join: [Syntax Error] line 0, col 87: Error: Expected Literal, got 'JOIN' -

i building shipping system ecommerce site using doctrine. have appropriate shipping methods , prices based on product , region data in checkout. i using following code querybuilder: $shippingpricereccords = $this->em->createquerybuilder() ->select('price') ->from('ordershippingprice', 'price') ->innerjoin('ordershippingmethod', 'method', 'price.fkordershippingmethod = method.id') ->innerjoin('ordershippingmethodregionmapping', 'map', 'map.fkordershippingmethod = method.id') ->where('price.fkproducttype = :fkproducttype') ->andwhere('price.fkbrand = :fkbrand') ->andwhere('map.fkregion = :fkregion') ->setparameters([ 'fkproducttype' => $fkproducttype, 'fkbrand' => $fkbrand, ...
Read more