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expected primary-expression before 'float' and expected ';' before 'float'

This is a discussion on expected primary-expression before 'float' and expected ';' before 'float' within the C++ Programming forums, part of the General Programming Boards category; Hi,I have 2 errors on the same line while compiling this code, I know itmay be some common beginners errors. ...

  1. #1
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    Join Date
    Feb 2013
    Posts
    54

    expected primary-expression before 'float' and expected ';' before 'float'

    Hi,I have 2 errors on the same line while compiling this code, I know itmay be some common beginners errors. Thank you in advance to any onewho may help me
    Code:
     
    Code:
    #include <iostream>     
    #include <iomanip>       
    #include <cstdlib>      
    using namespace std;
    float grilletest[20][20];
    
    float initialisation_grille()
    {
       float grille[20][20];
       int ligne ; int colonne ;
       for ( ligne = 0 ; ligne <= 20 ; ligne ++ )
            {  for ( colonne  = 0 ; colonne <= 20 ; colonne ++ )
                        {  grille [ ligne ] [ colonne ] = '0' ;
                            }
    
    
                    }
    return grille[20][20];
    }
    
    void affichage_grille ( float grilletest[20][20] ) { 
    float toto[20][20];                                                                   
    toto= float initialisation_grille();
    
    
     int ligne ;
     int colonne ;
     for ( ligne = 20; ligne >=0 ; ligne --){
                                                for ( colonne = 0 ; colonne <= 20; colonne ++ ){
                                                cout<< toto [ ligne ] [ colonne]<<'\t' ;
                                                        }
          cout << endl ;
        }
    }
    
    
    
    
    int main(){
    float tata[20][20];
    initialisation_grille();
    affichage_grille (tata);
    }

  2. #2
    and the hat of wrongness Salem's Avatar
    Join Date
    Aug 2001
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    Posts
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    1. Your indentation needs work.
    Code:
    #include <iostream>
    #include <iomanip>
    #include <cstdlib>
    using namespace std;
    float grilletest[20][20];
    
    float initialisation_grille()
    {
      float grille[20][20];
      int ligne;
      int colonne;
      for (ligne = 0; ligne <= 20; ligne++) {
        for (colonne = 0; colonne <= 20; colonne++) {
          grille[ligne][colonne] = '0';
        }
      }
      return grille[20][20];
    }
    
    void affichage_grille(float grilletest[20][20])
    {
      float toto[20][20];
      toto = float initialisation_grille();
    
      int ligne;
      int colonne;
      for (ligne = 20; ligne >= 0; ligne--) {
        for (colonne = 0; colonne <= 20; colonne++) {
          cout << toto[ligne][colonne] << '\t';
        }
        cout << endl;
      }
    }
    
    int main()
    {
      float tata[20][20];
      initialisation_grille();
      affichage_grille(tata);
    }
    2. What's this supposed to be?
    toto = float initialisation_grille();

    No, you can't return a whole array and assign it to another array.

    If you want to initialise your array, pass it as a parameter.

    3. for (ligne = 0; ligne <= 20; ligne++)
    All your loops are array overruns.

    Typically, you do
    for (ligne = 0; ligne < 20; ligne++) // NOT <=
    Elysia and iMalc like this.
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