parseFloat() problem

I try to parse data from a SD card to a double on a Due the data on the card looks like this 50.905372 but if I check the double the value is 50.905365 this data are GPS position waypoints. I can not post the code, its more than 3000 lines ...

Is there a work around for this problem?

greetings from belgium :-)

Save the data to SD as a long or unsigned long by multiplying the number by 1,000,000 before saving. Uses the same 4 bytes but you don't have the inaccuracy of floats. Divide by 1,000,000 and cast as float when you retrieve the number.

groundfungus: Save the data to SD as a long or unsigned long by multiplying the number by 1,000,000 before saving. Uses the same 4 bytes but you don't have the inaccuracy of floats. Divide by 1,000,000 and cast as float when you retrieve the number.

I was just trying this, and it works, but the data is a CSV with 1000 waypoint. they need to read from the SD card and put in 5 array's. The CSV is output from a datalogger, so we need to do some editing... On the racetrack while racing , not so handy If the data was allway's the same format I could use two times a parseInt() The parseInt() takes the decimal point as terminator... Working on this solution now, thanks for the advice :-)