int countlines(FILE *fp){
int nlcount = 0;
int ichar;
myrewind(fp);
while( (ichar=fgetc(fp)) != EOF ){
if( ichar == '\n' ){ nlcount ++ ;}
}
myrewind(fp);
return(nlcount);
}
/* measures the number of columns of the first line */
int countcolumns(FILE *fp){
char *line;
myrewind(fp);
line= getline(fp);
return( counttokens( line) );
}
BOOLEAN checkfile(FILE *fp){
char *line;
int nold, nnew;
int linecount;
BOOLEAN kosher = TRUE;
myrewind(fp);
/* read in the first line */
line= getline(fp);
linecount =1;
if( feof(fp) ){
return; /*empty file */
}else{
nold = counttokens(line);
#ifdef DEBUG
/* printf("%d:\t%s", nold, line); */
#endif
}
line = getline(fp);
while( !feof(fp) ){
linecount ++;
nnew = counttokens(line);
#ifdef DEBUG
/* printf("%d:\t%s", nnew, line); */
#endif
if( nnew != nold){
kosher = FALSE;
fprintf(stderr, "line %d has %d tokens; line %d has %d\n",
1, nold, linecount, nnew);
}
/* assert( nnew == nold ); */
line = getline(fp);
}
myrewind(fp);
return (kosher);
}
int main(void)
{
MYFILE *fp;
char path[1024];
char input[1024];
char output[1024];
size_t ret;
int len;
printf("bufsize: %d\n", BUFSIZ);
printf("pls input a path: ");
my_fgets(path, 1024);
printf("pls input a str: ");
my_fgets(input, 1024);
len = strlen(input);
printf("len: %d\n", len);
fp = myopen(path, "w+");
ret = mywrite(input, 1, len, fp);
printf("write ret: %d\n", ret);
myrewind(fp);
myread(output, 1, len, fp);
output[len] = '\0';
printf("read ret: %d\n", ret);
printf("%s\n", output);
myclose(fp);
return 0;
}
