1 files changed, 33 insertions, 0 deletions
diff --git a/rushs/evalexpr/io_count_words/count_words.c b/rushs/evalexpr/io_count_words/count_words.c
new file mode 100644
index 0000000..8b8c9a5
--- /dev/null
+++ b/rushs/evalexpr/io_count_words/count_words.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+
+int count_words(const char *file_in)
+{
+    if (file_in == NULL)
+    {
+        return -1;
+    }
+
+    FILE *f = fopen(file_in, "r");
+    if (f == NULL)
+    {
+        return -1;
+    }
+
+    int word = 0;
+    int count = 0;
+    int c;
+    while ((c = fgetc(f)) != EOF)
+    {
+        if ((c == ' ' || c == '\n' || c == '\t') && word == 1)
+        {
+            word = 0;
+        }
+        if (c != ' ' && c != '\n' && c != '\t' && word == 0)
+        {
+            word = 1;
+            count++;
+        }
+    }
+
+    return count;
+}