memory (bidimensional arrays).c

/* Reading a file */

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

int main() {
    // FILE
    FILE *mainfile;
    mainfile = fopen("file.txt", "r");
    if (!mainfile) { system("pause"); return(0); }
    // end FILE

    // VARIABLES
    int qnt /* line breaks */, brli = 10 /* to add to string with realloc */;
    int f, f2; /* any use */
    //end VARIABLES

    // MALLOC
    unsigned char *string[brli];
    string = (unsigned char *) malloc(10000 * sizeof(char)); /* Compiler: incompatible types in assignment */
    if (!string) { system("pause"); return(0); }
    // end MALLOC

    for (qnt = 0; qnt < 9999; qnt++) { // to each record
        fgets(string[qnt], 9999, mainfile); // get the record

        // FREE
        for (f = 0; f < 9999; f++) { // each byte
            if (string[qnt][f] == '\0') { // if byte = line break:
                while (f < 9999) { // while byte isn't the end of the record
                    f++; // next byte
                    free(string[qnt][f]); /* (freeing byte) Compiler: [Warning] passing arg 1 of `free' makes pointer from integer without a cast */
                } // freeing all bytes until the end of the record
            }
        } // release all unused bytes
        // end FREE

        // REALLOC
        if (qnt == (brli - 1)) { // if have more line breaks than the last allocation or re-allocation:
            brli += 10; // adding more 10 possibles line breaks
            unsigned char *newstr[brli];
            newstr = realloc(string, brli * sizeof(int)); /* Compiler: incompatible types in assignment */
            if (!newstr) { system("pause"); return(0); }
            string = newstr; /* Compiler: incompatible types in assignment */
        }
        // end REALLOC
    }