Hi, all. Thanks in advance.

I've reading a couple of nice books and a bunch of tutorials, and finally
decided to write some small program just to satisfy myself.

I have some directory where all the filenames are uppercased. I'm trying
to rename each file to corresponding lowercase letters.
Here's how I approached.

char *filename[MAX];
char fileList[N];
FILE *ifp;

system("ls > tmpfile");
ifp = fopen("tmpfile", "r");

for(int i = 0; fscanf(ifp, "%s", fileList) == 1; ++i) {
        filename[i] = calloc(strlen(fileList) + 1, sizeof(char));
        strcpy(filename[i], fileList);

Here's the dillema. Now I need to somehow convert this char * to int in
order to use tolower(). Then again I need to convert this int from
tolower() to char *, to later use rename(char *, char *).

How would I do this?
I guess I'm really confused, and am sorry to waste bandwidth with this
newbie question.

Again, thanks in advance.

Dae

     ^^^^^^^^^
This is C++ or C9X (I suspect the former).  Can't do this in C yet.

sizeof(char)==1, by definition.  No need for calloc() really, as the
strcpy() that follows is going to overwrite all the zeroes calloc()
put into the buffer.  malloc(strlen(fileList)+1) is enough.

The compiler does it for you, if you give tolower() a char at a time:

for(j=0; filename[i][j]!='\0'; j++)
  filename[i][j]=tolower(filename[i][j]);

==
Miguel Carrasquer Vidal                     ~ ~
Amsterdam                   _____________  ~ ~

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