Compiler errors

[keith katthy]

Dear all,

Why this program, cannot compile?

Compiling...
90.cpp
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(2) : error C2871: 'std' : does not exist or is not a namespace
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(8) : error C2447: missing function header (old-style formal list?)
Error executing cl.exe.

90.exe - 2 error(s), 0 warning(s)

#include <iostream.h>
using namespace std;
 
const int COL = 3;
const int ROW = 3;
 
    int main(int argc, char *argv[]);
{
    int i;
    int time;
    int srand,NULL,rand;
    int matrix[COL][ROW] = {0};   // declare and initialize a 2d array
 
    // seed the random number generator 
    // with the current time
    srand( (unsigned)time( NULL ) );
 
    // loop through the 2d array 
    // assigning a random number
    for (int i = 0; i < COL; i++)
{
    for (int j = 0; j < ROW; j++)
{
            matrix[i][j] = rand();
}
}
 
    // print the matrix
    for (int i = 0; i < COL; i++)
{
    for (int j = 0; j < ROW; j++)
{
            printf("%d\t", matrix[i][j]);
}
        printf("\n");
}
    return 0;
}

[oler1s]

The program can't compile because there are syntax errors.

#include <iostream.h> : Deprecated. Use <iostream> instead. If you don't understand why, then whatever resource you used to learn C++ is outdated. Get C++ Primer by Lippman, Accelerated C++ by Koenig, or another recognized and well recommended book.

Of course, you never use anything within iostream. Interestingly, this looks like an attempt at taking some C code and patching it as C++. Because you use srand (without the appropriate header). The same goes for printf, which is in cstdio in C++. But why use printf if you include <iostream>.

You have aroused my suspicions, so I think you'll want to explain what is going on here.

[keith katthy]

I have done acoretion, but still have error...anybody can tell me to correct its.?
:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(20) : error C2064: term does not evaluate to a function
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(20) : error C2064: term does not evaluate to a function
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(21) : error C2064: term does not evaluate to a function
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(25) : error C2086: 'i' : redefinition
C:\Documents and Settings\Administrator\Desktop\MASTER\90.cpp(34) : error C2086: 'i' : redefinition
Error executing cl.exe.

90.exe - 5 error(s), 0 warning(s)

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main ()
{

const int COL = 3;
const int ROW = 3;

int main(int argc, char *argv[]);
{
int i;
int time;
int srand;
int matrix[COL][ROW] = {0}; // declare and initialize a 2d array

// seed the random number generator
// with the current time
srand( (unsigned)time( NULL ) );
srand ( 1 );

// loop through the 2d array
// assigning a random number
for (int i = 0; i < COL; i++)
{
for (int j = 0; j < ROW; j++)
{
matrix[i][j] = rand();
}
}

// print the matrix
for (int i = 0; i < COL; i++)
{
for (int j = 0; j < ROW; j++)
{
printf("%d\t", matrix[i][j]);
}
printf("\n");
}
return 0;
}
}

[JosAH]

int main ()
{
 
const int COL = 3;
const int ROW = 3;
 
    int main(int argc, char *argv[]);
{
    int i;
// etc.
 

What are you trying to accomplish here?

kind regards,

Jos