need help

[djjuu16]

my professor sucks i need help with some kind of text thing

write a function to read #s from a file and calculate their sum, output to screen

input file name is arbitrary

someone please help!!!

[nvrmnd]

what do you have so far ?

[djjuu16]

thats the thing he did not show us anything and we dont have a book on this shit so i dont know where to start shadow fiend

[nvrmnd]

even hello world ?? by the way you can look at the documentation on this site, it's quite hard at first but you'll get it, trust me :///

http://www.cplusplus.com/doc/tutorial/

write a function to read #s from a file and calculate their sum, output to screen

i will provide the function snippet, what you gonna do basically is just #include necessary headers, create a main function, then call this function :

/*
 * the syntax for a function is :
 * <return_type> <function_name> ( <parameters> )
 */
void some_funtion( void )
{
    // ifstream class is used to "read" from a file
    // ofstream on the other hand is used to "write" to a file
    ifstream inputFile;
    
    // open the file :
    // replace <name_of_file> with the actual name of the file
    // you want to read from
    inputFile.open( "<name_of_file>.txt" );
    
    // create a variable to hold the "total" sum :
    int sum = 0;
    // create another variable to hold the temporary value read
    int temp;
    
    // read, add it to sum, read again, add to sum, and so on
    // until end of file is found
    while( inputFile >> temp )
        sum += temp; // this is the same as temp = temp + sum
        
    
    /* Now, a simple test :
     * all you need to do is print the value of sum variable,
     * i assume you know cout ?
     */
    // ...
    
}