I want to read a block of data from an ifstream into an array of doubles. However, the function .read(char* buffer, int size) does not allow me to put the pointer for the double array into where it requires a char pointer. I don't understand why there is this limitation, or how to get around it. I could use C-style file reading functions but I hate to mix C++ streams with C files.
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Problem reading block of data from file
- Thread starter mrhegemon
- Start date
Clairvoyant1332
Programmer
The buffer that the read function is looking for can really be anything you need it to be. A lot of built in functions that take some data buffer of an unknown type will typically declare the variable as a char *. Pass your array of doubles to the function and cast it as char * and it should work. The size variable should be the total size of your array, i.e. sizeof(mydoublearray).
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