Passing text from a file to an array??

[lbucko]

How do I read in text from a file into an array I have tried the following:

while(fgets(phrase, 100, ffp))

but this doesn't seem to work, I want to read in from the a file with file pointer ffp, into array phrase.

I also tried to do it the following way:

int status = fscanf(ffp, "%c", phrase);
while(status != EOF)

This won't work though as I'm only reading a character, how do I get it to take more than a character?? Any help please!

 

[Leibnitz]

Here is a little example to illustrate how you can do this:

int main(int argc, char* argv[])
{
FILE *fp;
if(( fp = fopen( "dialogs.txt", "r" )) == NULL )
printf(" can't open the file \"dialogs.txt\""
char Buffer[4096];
char c;
int i = 0;
while(( c = getc( fp )) != EOF )
{
Buffer = c;
i++;
}
for( int j = 0; j < i; j++ )
printf(&quot;%c&quot;,Buffer[j]);
fclose(fp);
return 0;
}

 

[rwb1959]

Just for completeness, you will want to avoid
a buffer overflow as well...

...
int maxbuf;
int i = 0;
...
maxbuf=(int)(sizeof(Buffer)-1);
while(( c = getc( fp )) != EOF )
{
Buffer = c;
i++;
if( i >= maxbuf )
break;
}
...

You could also perform this check in the &quot;while()&quot; statement
directly if you like....
while((( c = getc( fp )) != EOF) && i < maxbuf )

However, all this is really moot since a better
way to do this is with &quot;fread()&quot;...

memset((void *)Buffer, '\0', sizeof(Buffer)); // init. the buffer
while((fread(Buffer, sizeof(Buffer)-1, 1, ffp)) > 0)
{
...process the buffer...
memset((void *)Buffer, '\0', sizeof(Buffer)); // re-init. the buffer
}

fread does not distinguish between end-of-file and error,
and callers must use feof(3) and ferror(3) to determine
which occurred.

 

[melontek]

If you want to avoid reading the text file one character at a time...try the following:

if ((hInFile=fopen("./test.txt", "r")) == NULL) {
	printf("Couldn't open file.\n");
}

while (!feof(hInFile)) {
	memset (sString, '\0', 100);
	fgets(sString, 100, hInFile);
	...
}[code]

->fgets will read until it reads 99 characters or a newline.

 

[melontek]

If you want to avoid reading the text file one character at a time...try the following:

char		sString[100];

if ((hInFile=fopen("./test.txt", "r")) == NULL) {
	printf("Couldn't open file.\n");
}

while (!feof(hInFile)) {
	memset (sString, '\0', 100);
	fgets(sString, 100, hInFile);
	...
}[code]

->fgets will read until it reads 99 characters or a newline.