Thread: Segmentation fault with array?

Hello all, I am getting a segmentation fault when trying to access an array... I know this is silly, am I overlooking something? What the hell? The problem seems to occur when accessing an array from the bigFish function. Please teach me..

Code:

#include 
#include 
#include 
#include 
using namespace std;

struct fish{
int contestant[99999];
int fishNumber[99999];
float fishWeight[99999];};
void readFiles(int contest[20], string name[20], int fishNum[5], 
string fishType[5], fish fishStruct);
void bigFish(int contest[20], string name[20], int fishNum[5], 
string fishType[5], fish fishStruct);

int main()
{
 fish fishStruct;
 int choice = 0; //choice in menu
 cout.setf(ios::fixed, ios::floatfield);
 cout.setf(ios::showpoint);
 cout.precision(2);
 
 int contest[20];
 string name[20];
 int fishNum[5];
 string fishType[5];
 readFiles(contest, name, fishNum, fishType, fishStruct);
 
 cout<<"MENU: PLEASE MAKE A SELECTION"<<endl<<endl;
 cout<<"1. Display all data for a contestant"<<endl;
 cout<<"2. Display total catch weight for fish type"<<endl;
 cout<<"3. Display largest fish caught"<<endl<<endl;
 cout<<"Choose and option between 1-3"<<endl;
 cin>>choice;
 if (choice == 3)
 bigFish(contest, name, fishNum, fishType, fishStruct);
 return 0;
}

void readFiles(int contest[20], string name[20], int fishNum[5], string fishType[5], fish fishStruct)
{

 
 ifstream inFile;
 inFile.open("contestantname.data");
 if (!inFile)
 {
 cout<<"contestantname.data not found"<<endl;
 }
 //clearing out the array
 for(int i = 0; i < 20; i++)
 {
 contest[i]=0;
 name[i] = " ";
 }
 int count1 = 0;
 while(inFile)
 {
 inFile>>contest[count1];
 inFile>>name[count1];
 cout<<name[count1]<<endl;
 count1++;
 }
 inFile.close();
 
 inFile.open("fishtype.data");
 if (!inFile)
 {
 cout<<"fishtype.data not found"<<endl;
 }
 //clearing out the array
 for(int i = 0; i < 20; i++)
 {
 fishNum[i]=0;
 }
 int count2 = 0;
 while(inFile)
 {
 inFile>>fishNum[count2];
 inFile>>fishType[count2];
 count2++;
 }
 inFile.close();

 inFile.open("catch.data");
 if (!inFile)
 {
 cout<<"catch.data not found"<<endl;
 }
 //clearing out the array
 for(int i = 0; i < 20; i++)
 {
 fishStruct.contestant[i]=0;
 fishStruct.fishNumber[i]=0;
 fishStruct.fishWeight[i]=0;
 }
 int count3 = 0;
 while(inFile)
 {
 inFile>>fishStruct.contestant[count3];
 inFile>>fishStruct.fishNumber[count3];
 inFile>>fishStruct.fishWeight[count3];
 count3++;
 }
 inFile.close();
 

}
void bigFish(int contest[20], string name[20], int fishNum[5], 
string fishType[5], fish fishStruct)
{
 int num = 0; //temp contestant number
 int totalWeight = 0; //weight for each contestant
 string tempName; //temp contestant name
 cout<<"Please enter contestant number"<<endl;
 cin>>num;
 for(int i = 0; i < 20; i++)
 {
 cout<<name[i]; //THIS IS WHERE //I AM TROUBLED 
 

 }
 
}

Welcome to the board.

With that said..
Please use code tags. (See top of forum)

[edit]
I notice your arrays are quite large.

You might want to try and allocate the memory for them into a try block.

Code:

int *variable;

try {

    variable = new int [99999];

}

You might be having trouble there.

catch(std::bad_alloc &b) {

     std::cout << b.what;

}