read text file into formatted struct array

[mike91]

Hello,
I have a text file of unknown size that I need to read into a struct array where the struct looks like :
{
short hours
float secondsPastHour
float data1
float data2
}

But the text file is in the format
hh:mm:ss data1 data2

I have an array of the struct and I need each line in the text file to be read into one record of the array. I know how to open a file but I am having a hard time finding how to read and reformat the data in the file, and how the colon's are handled in the time string. How can I split this into two separate variables?

Thanks for the replies!

[weaknessforcats]

I assume the data in the file is in text format. Like 12:15:20.

All you need to is read into an int, a char, an int, a char and an int. Then move these variables you your struct variables.

BTW: Your struct variables should be int and not float.

[mike91]

The data for the time is in hh:mm:ss.ss format, yes, for example, 12:15:20.57 would be 12:15 and 20.57 seconds. The secondsPastHour needs to be a float. Also, the two data fields are both floats.

How can I read in an int and have it stop at the colon? Can you just give me a quick code snippet of this? I can't figure out which read routine is best for it.

Thanks.

[weaknessforcats]

In C++ if you have 10:20:30 all you do is:

int hr;
int min;
int sec;
char colon;

infile >> hr >> colon >> min >> colon >> sec;

In C you just use scanf().

BTW: 20.57 is not a float. It is 2057. Use an int in your struct. It would represent two thousand fifty seven hundredths of a second. You can always display it as 20.57. This works just like money where you keep your data in pennies. 2057 pennies is $20.57.

infile >> sec >>thedot >> hsec;

sec *= 100*sec;   //convert ss to hundredths of sec
sec += hec;         //sec should now have 2057.

[mike91]

After the file read, I'm using fscanf(filename , "%i,%c,%i,%c,%i ",&hours,&colon ,&minutes,&colo n,&seconds);

with just the time on a line in the text file and the only thing being read in is the hours, the minutes and seconds end up as zero.

--- nevermind this post-- I figurred it out, Thakns for the help.