I want to read from a 2d array which has strings in it. The thing is that the file seems to get created but when i am trying to read from the array has nothing stored in the file. The file is empty even after the write function. Please let me know where i am going wrong.
[insert]Code:#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#define MAX_WORD_LENGTH 31
#define MAX_WORDS 50
/* Function prototypes */
int readFile(char* inputFileName, int* wordCount, char array[][MAX_WORD_LENGTH], int flag);
//int qsort(char array[][MAX_WORD_LENGTH], int* wordCount);
int writeToFile(char* outFileName, int wordCount, char array[][MAX_WORD_LENGTH]);
//void printTime(time_t begin);
void usage(char* processName);
// enter any other function prototype you may wish
int main(int argc, char* argv[])
{
char array[MAX_WORDS][MAX_WORD_LENGTH];
int wordCount = 0;
switch (argc)
{
case 3:
readFile(argv[1], &wordCount, array,0);
writeToFile(argv[2], wordCount, array);
break;
case 4:
{
if (strcmp(argv[1], "-s") == 0)
{
readFile(argv[2], &wordCount, array,1);
writeToFile(argv[3], wordCount, array);
}
else if (strcmp(argv[1], "-t") == 0)
{
readFile(argv[2], &wordCount, array, 2);
writeToFile(argv[3], wordCount, array);
}
else
{
usage(argv[0]);
}
break;
}
case 5:
default:
usage(argv[0]);
break;
}
return 0;
}
// Define all your functions here
int readFile(char* inputFileName, int* wordCount, char array[][MAX_WORD_LENGTH], int flag)
{
FILE *fp;
fp = fopen(inputFileName, "r");
if(fp == NULL)
{
printf("\n Unable to open the file. Aborting");
exit(EXIT_FAILURE);
}
while(fscanf(fp, "%s", array[(*wordCount)++]) > 0);
return 0;
}
int writeToFile(char* outFileName, int wordCount, char array[][MAX_WORD_LENGTH])
{
int i = 0;
FILE *fp;
fp = fopen(outFileName, "w");
if(fp == NULL)
{
printf("\n Unable to open the file. Aborting");
exit(EXIT_FAILURE);
}
for(i = 0; i< wordCount; i++)
{
fprintf(fp, "%s\n", array[i++]);
}
return 0;
}
void usage(char* processName)
{
printf("Usage %s [-s] [-t] inputFileName outputFileName\n", processName);
}
