Solution for Exercise 23-2
ex2302
#include <stdio.h> #include <stdlib.h> #include <dirent.h> int main() { DIR *folder; struct dirent *file; folder=opendir("."); if(folder==NULL) { puts("Unable to read directory"); exit(1); } while(file = readdir(folder)) printf("Found the file '%s'\n",file->d_name); closedir(folder); return(0); }
Notes
* As long as the readdir() function returns a pointer to a dirent structure (Line 16), the while loop spins and directory entries are read.
* Feel free to ignore any "suggest parentheses" warning about Line 16. The compiler sees the single =
sign and assumes that you meant to specify two, such as ==
for "is equal to." In the context as presented in this code, the statement is correct. That's why the compiler issued a warning and not an error.
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