Ошибка array initializer must be an initializer list

So here is my question. I am tring to run a program I found online and it is failing to compile. Why am I getting an error: "array initializer must be an initializer list or string literal" when I am in fact using a string? I know this code works for others running windows, but not for me on the m1 Mac.

I am trying to initialize a string array using

string f[3] = " ";

#include <iostream>
#include <cstdio>
#include <string.h>
#include <unistd.h>
#include <cstdlib>

using namespace std;

int main()
{
    bool cont = true;
        
    char buffer[100] = {};

    while (cont)
    {
        cout << "nnEnter a command: ";
        
        cin.get (buffer, 90);
    
        //REMOVE
        if (strstr (buffer,"remove") != NULL)
        {
            char* t = strchr (buffer,' ');

            if(t != NULL)
            {
                if(remove( t+1 ) != 0)
                    cout << "nnError deleting the file.";
                else
                    cout << "nnThe file has successfully been deleted.";
            }
    
            else
                cout << "nnInvalid command. Filename not entered.";

        }

        //EXIT
        else if (strstr (buffer,"exit") != NULL)
            cont = false;
        

        //RENAME
        else if (strstr (buffer,"rename") != NULL)
        {
            char* t = strchr (buffer,' ');
            
            if (t != NULL)
            {
                char* oldName = t + 1;  
                    char* newName = strchr (oldName, ' ');


                if (newName != NULL)
                {
                    char temp[30] = {};
                    
                    int i = 0;
                    for(char* start = oldName; start != newName; start++)
                    {
                        temp[i] = *start;
                        i++;
                    }

                    newName++;
                

                    if(rename( temp , newName ) != 0)
                        cout << "nError renaming the file.";
                        else
                        cout << "nThe file has successfully been renamed.";
                }   
                    
                else
                    cout << "nnNew Name of the file not entered.";
            }
            
            else
                cout << "nnInvalid command.";

        }


        //RMDIR
        else if (strstr (buffer,"rmdir") != NULL)
        {
            char* t = strchr (buffer,' ');

            if(t != NULL)
            {
                if(rmdir( t+1 ) != 0)
                    cout << "nnError deleting the directory.";
                else
                    cout << "nnThe directory has successfully been removed.";
            }
    
            else
                cout << "nnInvalid command. DirectoryName not entered.";

        }
        

        //ECHO
        else if (strstr (buffer,"echo") != NULL)
        {
            char* t = strchr (buffer,'"');

            if (t != NULL)
            {
                char* data = t + 1; 

                //Extracting the data
                char temp[200] = {};
                
                int i = 0;

                for(; data[i] != '"'; i++)
                {
                    temp[i] = data[i];
                }


                //Checking if filename is given or not
                    char* fileN = strchr (data + i, ' ') ;

                if (fileN != NULL)
                {
                    fileN++;
                
                    // create a FILE typed pointer
                    FILE *file_pointer; 
    
                    // open the file for writing
                    file_pointer = fopen (fileN, "w");
                    
                    if (file_pointer != NULL)
                    {
                        // Write to the file
                        fprintf (file_pointer,"%s", temp);
    
                        // Close the file
                        fclose (file_pointer); 
                    
                        cout << "nnThe file has been successfully created.";
                    }
                    
                    else
                        cout << "nnCould not create the file.";
                }   
                    
                //If filename isn't given then simply print the data on console
                else
                {
                    cout << endl << endl << temp;
                }
            }
    
            else
                cout << "nnInvalid command. Data not given";
        }

        //UNZIP
        else if (strstr (buffer,"unzip") != NULL)
        {
            char* t = strchr (buffer,' ');

            if(t != NULL)
            {
                char temp[50] = "tar xvf";
    
                if( system( strcat(temp,t) ) != 0 )
                    cout << "nnError unzipping the file.";
                else
                    cout << "nnThe file has been successfully unzipped.";
            }
    
            else
                cout << "nnInvalid command. FileName not entered.";   
        }

        
        //ZIP
        else if (strstr (buffer,"zip") != NULL)
        {
            char* t = strchr (buffer,' ');

            if(t != NULL)
            {
                char temp[50] = "tar cvf";

                if( system( strcat( temp,t) ) != 0 )
                    cout << "nnError zipping the file.";
                else
                    cout << "nnThe file has been successfully zipped.";
            }
    
            else
                cout << "nnInvalid command."; 
        }

        
        else if (strstr (buffer,"out") != NULL)
        {
            int i = 1;
    
            //Checking '-l'
            bool lineByLine = false;
            char* lpos = strstr (buffer,"-l");              
            
            if (lpos != NULL)
            {   
                lineByLine = true;
                i++;
            }
    
            string s(buffer);
            string fileN = "";              
                    
            string delimiter = " "; 
            size_t pos = 0;
        
            while ( i > 0 )
            {   
                pos = s.find(delimiter);
                s.erase(0, pos + delimiter.length());
                i--;
            }
            

            //Now extracting the file names
            string f[3] = " ";
            
            i = 0;

            while ( (pos = s.find(delimiter)) != -1)
            {
                f[i] = s.substr(0, pos);
                    s.erase(0, pos + delimiter.length());
                i++;
            }

            //if atleast one filename is present
                
            if ( s != "out" && s != "-l" && s != "" )
            {
                f[i] = s;
        
                //Opening the files and printing the contents
    
                int c;
                FILE *file;
                
                int j = 0;
    
                bool delay = false;
                char x;         

                while ( j <= i)
                {               
                    char fName[50];
                    strcpy(fName, f[j].c_str());

                    //Printing the contents of the file(s)

                    file = fopen(fName, "r");
                    char line[256];
                    
                    cout << "nnThe contents of the file " << fName << " are as follows : nn";

                    if (file)
                    {
                        if (lineByLine)
                        {   
                            while (fgets(line, sizeof(line), file)) 
                            {
                                        printf("%s", line);
                                
                                //Delay loop
                                delay = true;
                
                                while(delay)
                                {   
                                    cout << "nnPress some key to print the next linenn";
                                    getchar();
                                    delay = false;  
                                }                        
                                }

                        }
                
                        else
                        {
                                while ((c = getc(file)) != EOF)
                                putchar(c);
                        }

                        
                            fclose(file);
                    }
    
                    else
                        cout << "nnCould not open the file " << fName << " .";
    
                    j++;
    
                    //Delay loop
                    delay = true;
                
                    while(delay)
                    {   
                        cout << "nnPress some key to continuenn";
                        getchar();
                        delay = false;  
                    }
                }
            }
            
            else
                cout << "nnNo filename entered.nn";         
        }

        else
            cout << "nnInvalid Command. Kindly enter a valid command.";


        cin.ignore();
    }



    cout << "nnnExiting the CLI.nn";
    
    return 0;
}

>Solution :

If you are trying to create a string of length 3, you should do this:

string f(3, ' ');

If you are trying to create an array of 3 different strings, then the issue with your code is that you have a type mismatch – you are trying to assign a single string to an array of strings. Instead, you would want to do this:

string f[3] = {" ", " ", " "};

Looking at your code, it looks like you want to create an array of strings. However, it also looks like you could be reading in any number of strings (unless there is some logic in your code where you are confident it will always be 3?) so I recommend using a std::vector.

 std::vector<std::string> f;

Which you can add strings to with the push_back() method like this:

f.push_back(s.substr(0, pos));