1 files changed, 35 insertions, 0 deletions
diff --git a/cpp/enumerate/enumerate.cc b/cpp/enumerate/enumerate.cc
new file mode 100644
index 00000000..02349213
--- /dev/null
+++ b/cpp/enumerate/enumerate.cc
@@ -0,0 +1,35 @@
+#include<cstdlib>
+#include<dirent.h>
+#include<vector>
+using std::vector;
+#include<string>
+using std::string;
+#include<iostream>
+using std::cout;
+
+int enumerate_files_in_cwd_until(string last_file);
+string flag_value(const string& flag, int argc, const char* argv[]);
+
+int main(int argc, const char* argv[]) {
+  return enumerate_files_in_cwd_until(flag_value("--until", argc, argv));
+}
+
+int enumerate_files_in_cwd_until(string last_file) {
+  dirent** files;
+  int num_files = scandir(".", &files, NULL, alphasort);
+  for (int i = 0; i < num_files; ++i) {
+    string curr_file = files[i]->d_name;
+    if (!isdigit(curr_file[0])) continue;
+    if (!last_file.empty() && curr_file > last_file) break;
+    cout << curr_file << '\n';
+  }
+  // don't bother freeing files
+  return 0;
+}
+
+string flag_value(const string& flag, int argc, const char* argv[]) {
+  for (int i = 1; i < argc-1; ++i)
+    if (string(argv[i]) == flag)
+      return argv[i+1];
+  return "";
+}