Okay, I would like to explain what I am trying to do prior to the code with the issue. I am creating a student record system. I am trying to pull information from a text file into the record system. I am trying to store the information using arrays on a heap.
I am mostly concerned with the first few errors as I feel that those lead to the following ones. Any help would be greatly appreciated as I have looked through many forums and they have not lead me in the correct direction. Thanks in advance!
Code:
#include "address.h"
#include "student.h"
#include "date.h"
#include "record.h"
#include "name.h"
#include <iostream>
#include <fstream>
#include <string>
#include <cstdlib>
#define pArray
#define students
#define Request
using namespace :: std;
enum {sNUMBER=50};
//Function Prototypes
void tPrint(string*,student pArray);
void sPrint(string*,student pArray);
void alpha(string*,student pArray);
int generate();
//Function Definitions
void tPrint(string*,student pArray, alpha)
{
if (alpha != 0)
{
alpha(pArray);
}//end if
int i;
for (i=0; i<sNUMBER;i++)
{
pArray->tPrint();
p开发者_开发问答Array+=1;
}//end for
};//end tPrint
void sPrint(string*,student pArray)
{
if (alpha != 0)
{
alpha(pArray);
}//ennd if
int i;
for (i=0; i<sNUMBER;i++)
{
pArray->sPrint();
pArray+=1;
}//end for
};//end sPrint
void alpha(string*,student pArray)
{
int i;//counter
int j;//counter
for (i=0;i<sNUMBER-1;i++)
{
for (j=0;j<sNUMBER-1-i;j++)
{
//combine first and last names into full names
if (strcmp((pArray->GetsName().GetfName())+=" " +=(pArray->GetsName().GetlName()),((pArray+1)->GetsName().GetfName())+=" "+=((pArray+1)->GetsName().GetlName()))>0)
{
swap(pArray[j],pArray[j+1]);
}
}//end for
}//end for
};//end alpha
int generate ()
{
srand(sNUMBER);
ofstream data;
data.open ("data.txt");
if (data.is_open())
{
int i; // counter
int j; // counter
//Name info
string new fName[sNUMBER];
string new lName[sNUMBER];
//Address info
string new add1[sNUMBER];
string new add2[sNUMBER];
//variables to generate names
string new fName1[5] = {"Alfred","Robert","Ryan","Hank","Richard"};
string new fName2[5] = {"Hannah","Lacie","Crystal","Kayce","Susan"};
string new lName1[5] = {"Smith","Jones","Allison","Johnson","Moore"};
string new lName2[5] = {"Howard","Williams","Pinkston","Cooley","Vernon"};
string new fNames[2] = {fName1,fName2};
string new lNames[2] = {lName1,lName2};
// variables to generate addresses
string new adds1[5] = {"159 faternity st.","399 Dorm Blvd.","222 faternity st.", "777 Dorm Blvd", "82 Canal street"};
string new adds2[10] = {"Apartment A", "Apartment B", "Apartment C", "Apartment D", "Apartment E","Apartment F", "Apartment G", "Apartment H", "Apartment I"};
for (i=0;i<sNUMBER;i++)
{
for (j=0; j<5; j++)
{
strCopy(fName[i],fNames[i>25][j]);
strCopy(lName[i],lNames[i>25][j + floor(i/5)-(i>25)*(floor(i/5)-6)- 4*((j+i/5)>5)]);
}
}
for (i=0;i<sNUMBER;i++)
{
for (j=0; j<10; j++)
{
strCopy(add1[i],adds1[j]);
strCopy(add2[i],adds2[j + floor(i/10)-(i>25)*(floor(i/10)-11)- 4*((j+i/10)>10)]);
}
}
//deallocate unneeded variables
delete [] fName1;
delete [] fName2;
delete [] lName1;
delete [] lName2;
delete [] fNames;
delete [] lNames;
for (i=0; i<sNUMBER;i++)
{
// name info
Data << fName[i] << "\n"; // first name
Data << lName[i] << "\n"; // last name
// address info
Data << add1[i] <" \n"; // add 1
Data << add2[i] <" \n"; // add 2
Data << "Indianapolis \n"; // city
Data << "IN \n"; // state
Data << "46168 \n"; // zip
// birthdate
Data << rand()%28 + 1 << " \n"; //day
Data << rand()%12 + 1 << " \n";//month
Data << 2011 -(rand()%49 + 12)<< "\n";//year
//graddate
Data << rand()%28 + 1 << " \n";//day
Data << rand()%12 + 1 << " \n"; // month
Data << 2011 + (rand()%6+2)<< " \n"; // year
//performance info
Data << (rand()%16)/(float rand()%4)<<" \n"; //gpa
Data << (rand()%300)<< " \n"; //credits
}
//Deallocate rest of memory
delete [] fName;
delete [] lName;
delete [] add1;
delete [] add2;
data.close();
}
else
{
cout << "Your file did not open. Sorry \n";
}
return 0;
}//end generate}
Here are the errors:
C:\Users\main.cpp||In function ‘void tPrint(std::string*, student)’:|
C:\Users\main.cpp|25|error: too few arguments to function ‘void alpha(std::string*, student)’|
C:\Users\main.cpp|32|error: at this point in file|
C:\Users\main.cpp|37|error: expected primary-expression before ‘->’ token|
1) The three #defines in your code are probably just plain wrong
#define pArray
#define students
#define Request
Especially "pArray", since you use it as a parameter name later on.
2) You're comparing a function against zero. That doesn't make sense, since the test will always succeed.
if (alpha != 0)
{
alpha(pArray);
}//end if
EDIT: Wait, I see, there's an (incorrectly declared) parameter "hiding" the global name "alpha". Well, that obviously cannot work either, since the parameter has no name ("alpha" is actually the type).
3) As already stated in a comment by David Thornley, you try to call the function with a single argument, which obviously cannot work, since you declared it with two arguments. (Actually you call it with no arguments at all, since the pArray #define will be "expanded" to empty-string)
4) The syntax you try to use to declare variables is just plain wrong
string new fName[sNUMBER];
I do not even know what that is supposed to mean.
And there is probably so much more...
You really need to get a tutorial or introductory text on C++. There are so many things wrong that I wouldn't know where to begin... the #define
's in the beginning of the file make no sense (what do you intend with that? the real effect is that the preprocessor will discard those words), you should not handle strings through pointers (pass references, if possible constant references), you are declaring a tPrint
function with two arguments, and defining a different tPrint
overload with three, the last of which is incorrect, as alpha
is not a type. The first and second argument (after preprocessor substitutions) are unnamed so they cannot be used...
And all that before getting to the first actual line of code...
The error is: too few arguments to function void alpha(std::string*, student)
.
When we lookup in the code you typed:alpha(pArray);
.
But the function signature is: void alpha(string*,student pArray);
So pass a string as parameter will fix the error but there there are a lot of other wrong things in your code:
- void tPrint(string*,student pArray, alpha) What is alpha? I only see an empty define
- string new fName[sNUMBER]; Wont compile. I think you mean
string* name = new fName[sNUMBER];
And what is a fName? - Many more strange things...
Maybe a C++ tutorial fits you better: see here
Your big problem is the #define
s. What you are doing with those is defining the identifiers as, literally, nothing. Where there was a pArray
, there is now nothing. In C++, any line beginning with #
is a preprocessor command, meaning it operates on the text of the program. In order to actually define an identifier, you just, essentially describe it.
You are using pArray
as function parameters, which means none of its occurrences are at the outer scope. If the preprocessor behaved like any other part of C++, then, it would be harmless, but it just does textual substitution. You might want to let the compiler tell you when you have failed to define something.
Another issue is the "too few arguments". You declare alpha
as taking two arguments, but only pass one when you call it early in tPrint
.
I'm not going to go through the rest of the errors until you fix what you've got. Once you've removed the #define
s and read through the other errors yourself.
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