Something wrong with string class

[Nobody/Anonymous]

1)Dev 4.9.9.2 on windows xp sp2

2)
//Curved Grading

include "iostream.h"

include "fstream.h"

include "math.h"

include "iomanip.h"

include <string.h>

include "stdlib.h"

int main()
{
char ch;
int n=10;
int set[n], i, j,sum=0;
float m, sd, devsum;

cout << "Enter the name of teh input file";
string inputFileName;
getline(cin, inputFileName);

for(i=0; i<n; i++)
{
cout << "Input number: ";
cin >> set[i];
}

for(i=0; i<n;i++)
sum = set[i] + sum;

m = sum/n;

for(i=0;i<n;i++)
devsum = ((set[i] - m) * (set[i] - m) + devsum);

sd = sqrt(devsum/n);

for(i=0;i<n;i++)
{
if (set[i] < (m - 1.5*sd))
cout << "F \n";

else if(set[i] < (m - .5 * sd))
cout << "D \n";

else if(set[i] < (m + .5 * sd))
cout << "C \n";

else if(set[i] < (m + 1.5 * sd))
cout << "B \n";

else
cout << "A \n";

}

cin >> ch;
return 0;
}

3)Compiler: Default compiler
Executing g++.exe...
g++.exe "F:\Dev-Cpp\Programs\Curved Grading.cpp" -o "F:\Dev-Cpp\Programs\Curved Grading.exe" -traditional-cpp -g3 -I"F:\Dev-Cpp\lib\gcc\mingw32\3.4.2\include" -I"F:\Dev-Cpp\include\c++\3.4.2\backward" -I"F:\Dev-Cpp\include\c++\3.4.2\mingw32" -I"F:\Dev-Cpp\include\c++\3.4.2" -I"F:\Dev-Cpp\include" -L"F:\Dev-Cpp\lib" -g3
In file included from F:/Dev-Cpp/include/c++/3.4.2/backward/iostream.h:31,
from F:\Dev-Cpp\Programs\Curved Grading.cpp:3:
F:/Dev-Cpp/include/c++/3.4.2/backward/backward_warning.h:32:2: warning: #warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated.
F:\Dev-Cpp\Programs\Curved Grading.cpp: In function int main()': F:\Dev-Cpp\Programs\Curved Grading.cpp:22: error:string' undeclared (first use this function)
F:\Dev-Cpp\Programs\Curved Grading.cpp:22: error: (Each undeclared identifier is reported only once for each function it appears in.)
F:\Dev-Cpp\Programs\Curved Grading.cpp:22: error: expected ;' before "inputFileName" F:\Dev-Cpp\Programs\Curved Grading.cpp:23: error:inputFileName' undeclared (first use this function)

Execution terminated

[Nobody/Anonymous]

include <string>

using namespace std;

[Nobody/Anonymous]

And convert the old header files to their new names (see compiler warning) and replace their speech marks (") with angle bracket <>

[Anonymous]

Not only is the use of the .h extension deprecated for C++, <string.h> is not and never was the header for the C++ string class. It is the header for the C string library.

Did you actually read the error messages (that is after all what they are for!). The one that says "#warning This file includes at least one deprecated or antiquated header. Please consider using one of the 32 headers found in section 17.4.1.2 of the C++ standard. Examples include substituting the <X> header for the <X.h> header for C++ includes, or <iostream> instead of the deprecated header <iostream.h>. To disable this warning use -Wno-deprecated. " is pretty explicit.

Clifford