matrix

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


#define GROW_BY 10



void convertStringToFloat(char *);

int main(int argc, char *arcv[]){
    //Define a user input as a string, loop over that string and separate each row of it with ;
    //so then the loop determines ';' it counts a new row and so on, determine the number
    //of rows by the first row in the matrix
    char  matrix[100][100];
    char *str_p, *next_p, *tmp_p;
    int ch, need, chars_read;
    if(GROW_BY < 2){
        fprintf(stderr, "Growth constant is too small\n");
        exit(EXIT_FAILURE);
    }

    str_p = (char *)malloc(GROW_BY);

    if(str_p == NULL){
        fprintf(stderr, "No initial store\n");
        exit(EXIT_FAILURE);
    }
    next_p = str_p;
    chars_read = 0;
    while((ch = getchar()) != EOF){
        int row = 0;
        int col = 0;

        //parse the input characters from here, every ';' indicates a new row in the matrix
        if(ch == ']'){
            *next_p = 0;
            //printf("%s\n", str_p);
            convertStringToFloat(str_p);
            free(str_p);
            chars_read = 0;
            str_p = (char *)malloc(GROW_BY);
            if(str_p == NULL){
                fprintf(stderr, "No initial store \n");
                exit(EXIT_FAILURE);
            }
            next_p = str_p;
            continue;
        }
        if(chars_read == (GROW_BY - 1)){
            *next_p = 0;
            need = next_p - str_p + 1;
            tmp_p = (char *)malloc(need + GROW_BY);
            if(tmp_p == NULL){
                fprintf(stderr, "No more store\n");
                exit(EXIT_FAILURE);
            }
            strcpy(tmp_p, str_p);
            free(str_p);
            str_p = tmp_p;
            next_p = str_p + need - 1;
            chars_read = 0;
        }
        *next_p++ = ch;
        chars_read++;
    }
    if(str_p - next_p){
        *next_p = 0;
        fprintf(stderr, "Incomplete last line\n");
        printf("%s\n", str_p);
    }

    exit(EXIT_SUCCESS);
}


void convertStringToFloat(char *str){
    //First split the line into an array
    char ch;
    ch = *str;
    char *pch, *end_row;
    pch = strtok_r(str, ";", &end_row);
    while(pch != NULL){
        char *end_char;
        printf("%s\n", pch);
        printf("after: %s\n", pch);
        char *num = strtok_r(pch, " ", &end_char);
        while(num != NULL){
            printf("%s\n", num);
            float float_num = atof(num);
            printf("float: %f\n", float_num);
            num = strtok_r(NULL, " ", &end_char);
        }
        pch = strtok_r(NULL, ";", &end_row);
        free(num);
    }
    //printf("%s\n", str);
}