Thread: Brain Fart/Freeze - String to float question

Hola,

I'm having a major brain fart here.

I am reading in a file from (programName) <input.txt.

And I am using fgets() to grab the each line and I'm dealing with each line.

There are some numbers on the line in the format of 01/01/2011,123.45,56.78,...,23.12

I am trying to grab those numbers (ie 123.45) and convert them into a regular number, atoi() farts out when it hits the . and spits back 123.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main ()
{
  parseFile();

  //more work

  return 0;
}

void parseFile()
{
  while ( fgets(line, 256, stdin) != NULL )
  {
    //error checking/handling
    //dealing with other lines prior to the lines with the data

    grabData(line);
  }
}

void grabData(char *str)
{
  char *delims[] = ",";
  char *result = NULL;
  
  result = strtok( str, delims );

  //String format going in is in the form of
  //date,price1,price2,...,priceN
  //sample lines
  // 1/31/2012,29.53,26.42,456.48
  // 1/30/2012,29.61,26.74,453.01

  while ( result != NULL )
  {
    result = strtok(NULL, delims);//grabs the first price
 
    //how to convert into a number??
    //tried scanf() but either I'm not getting it or still confused :S
    //Store the number into 'double stockTable[n][m]'
  }
}

An suggestions, or a better way in doing it?

Thank You in advance!

or there is atof()