Whenever I try to compile a C++ file with IOStream , I get this error.. I've tried reinstalling GCC G++ (both 4.6 and 4.9) AND cpp.. It hasnt helped (or maybe I didnt do it the right way). How do I fix this error
In file included from /usr/include/c++/4.9/bits/localefwd.h:40:0, from /usr/include/c++/4.9/ios:41, from /usr/include/c++/4.9/ostream:38, from /usr/include/c++/4.9/iostream:39, from Integration_Any.cpp:1:
/usr/include/x86_64-linux-gnu/c++/4.9/bits/c++locale.h:52:23: error:‘uselocale’was not declared in this scope extern "C" __typeof(uselocale) __uselocale; ^
/usr/include/x86_64-linux-gnu/c++/4.9/bits/c++locale.h:52:45: error: invalid type in declaration before ‘;’ token extern "C" __typeof(uselocale) __uselocale; ^
/usr/include/x86_64-linux-gnu/c++/4.9/bits/c++locale.h: In function ‘int std::__convert_from_v(__locale_struct* const&, char*, int, const char*, ...)’: /usr/include/x86_64-linux-gnu/c++/4.9/bits/c++locale.h:75:53: error: ‘__gnu_cxx::__uselocale’ cannot be used as a function __c_locale __old = __gnu_cxx::__uselocale(__cloc); ^
/usr/include/x86_64-linux-gnu/c++/4.9/bits/c++locale.h:100:33: error: ‘__gnu_cxx::__uselocale’ cannot be used as a function __gnu_cxx::__uselocale(__old); ^The code is MPI
#include <iostream>
#include <math.h>
#include <stdlib.h>
#include "/home/pnpninja/PC/Monte Carlo/prng_engine.hpp"
#include "mpi.h"
#define sitmo_rand_max 4294967295
using namespace std;
int main(int argc,char* argv[])
{
//Initialization of variables int numprocs,myid,rc; double iterations,eachintegration,integrationsum,pi,start,total_time,actualsum,llimit,rlimit,eac hllimit,eachrlimit,coefficients[26],highest_coefficient; //Initialization on MPI Variables MPI_Init(&argc,&argv); MPI_Status status; MPI_Comm_size(MPI_COMM_WORLD,&numprocs); MPI_Comm_rank(MPI_COMM_WORLD,&myid); //Get number of iterations in MASTER Process / Process 0 if(myid == 0) { cout<<"Enter the highest coeffecient (highest is 25): "; cin>>highest_coefficient; for(int temp=highest_coefficient;temp>=0;temp--) { printf("Enter the coefficient of degree %d : ",temp); cin>>coefficients[temp]; } cout<<"Enter the lower limit : "; cin>>llimit; cout<<"Enter the upper limit : "; cin>>rlimit; cout<<"Enter the number of iterations : "; cin>>iterations; start = MPI_Wtime(); } //Broadcast it to all other processes MPI_Bcast(&highest_coefficient,1,MPI_DOUBLE,0,MPI_COMM_WORLD); MPI_Bcast(coefficients,26,MPI_DOUBLE,0,MPI_COMM_WORLD); MPI_Bcast(&llimit,1,MPI_DOUBLE,0,MPI_COMM_WORLD); MPI_Bcast(&rlimit,1,MPI_DOUBLE,0,MPI_COMM_WORLD); MPI_Bcast(&iterations,1,MPI_DOUBLE,0,MPI_COMM_WORLD); //Parallel Random Generator with seed as Process ID sitmo::prng_engine eng(MPI_Wtime()); eachintegration=0; eachllimit = llimit+(((rlimit-llimit)/numprocs)*myid); eachrlimit = llimit+(((rlimit-llimit)/numprocs)*(myid+1)); for(int a=1;a<=iterations/numprocs;a++) { double point = eachllimit + ((double(eng())/(double(sitmo_rand_max)))*(eachrlimit- eachllimit)); for(int b=0;b<=highest_coefficient;b++) { eachintegration+=(coefficients[b]*(pow(point,b))); } } rc = MPI_Reduce(&eachintegration,&integrationsum,1, MPI_DOUBLE, MPI_SUM,0, MPI_COMM_WORLD); if(myid == 0) { total_time = MPI_Wtime() - start; cout<<"\nThe integration by Monte Carlo method is : "<<((integrationsum/iterations)* (pow(rlimit-llimit,1))); actualsum=0; for(int c=0;c<=highest_coefficient;c++) { actualsum+=(coefficients[c]*((pow(rlimit,c+1))-(pow(llimit,c+1)))/(double(c+1))); } cout<<"\nThe error is : "<<((integrationsum/iterations)*(pow(rlimit-llimit,1)))- actualsum;
cout<<"\nThe time taken is : "<<total_time<<"\n"; } MPI_Finalize();
}command to compile
mpic++ Int_Any Integration_Any.cpp -lmEven a simple Hello World program wont compile as it gives me this error
6 Reset to default
