c++ - How to remove vector of struct that contains vector of int -

i want delete val[i] follows:

struct sstruct{     int v1;     double v2; };  struct sstruct2{ std::vector<int> id;     double a;     std::vector<sstruct > b; };  std::vector <sstruct2> val; 

i tried code got error, using std::remove_if

bool testfun(sstruct2 id1) {     bool result= true;      if ((id1.a< somevalue)       {         // fails         result= false;     }      return result; }  void delfun() {     (int i= 0; i< val.size(); i++)     {         if (!testfun(val[i]))         {           **// here don't how search val[i] fails in condition**           val.erase(std::remove_if(val.begin(), val.end(),            val[i].id.begin()), val.end());           }     } } 

error: c2064: term not evaluate function taking 1 arguments

you don't have use loop loop, use following in delfun

val.erase(std::remove_if(val.begin(), val.end(),            []( const sstruct2& id)          {   // lambda c++11  use flag -std=c++11              return  ( id1.a < somevalue ) ;          }          val.end());  

---

// or without lambda   struct testfun {     bool operator()(const sstruct2& i) const     {         return ( id1.a < somevalue ) ;     } };  val.erase(std::remove_if(val.begin(), val.end(),           testfun()          val.end());