diff --git a/c_pointers/getline.c b/c_pointers/getline.c
index aef892d..9c2f574 100644
--- a/c_pointers/getline.c
+++ b/c_pointers/getline.c
@@ -1,68 +1,9 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include "getline.h"
 
 
-char *getLine(void);
-char *trim(char *phrase);
-
-
-char *getLine(void) {
-
-    const size_t sizeIncrement = 10;
-    char *buffer = malloc(sizeIncrement);
-    char *currentPosition = buffer;
-    size_t maximumLength = sizeIncrement;
-    size_t length = 0;
-    int character;
-
-    if (currentPosition == NULL) {
-        return NULL;
-    }
-
-    while (1) {
-        character =fgetc(stdin);
-        if (character == '\n') {
-            break;
-        }
-        if (++length >= maximumLength) {
-            char *newBuffer = (char*) realloc(buffer, maximumLength += sizeIncrement);
-            if (newBuffer == NULL) {
-                free(buffer);
-                return NULL;
-            }
-            currentPosition = newBuffer + (currentPosition - buffer);
-            buffer = newBuffer;
-        }
-        *currentPosition++ = character;
-    }
-    *currentPosition = '\0';
-    return buffer;
-}
-
-
-char *trim(char *phrase) {
-
-    char *old = phrase;
-    char *new = phrase;
-
-    // skip blank chars
-    while (*old == ' ') {
-        old++;
-    }
-
-    while (*old) {
-        *new = *old;
-        new++;
-        old++;
-    }
-
-    // set string end char
-    *new = 0;
-
-    return (char*) realloc(phrase, strlen(phrase) + 1);
-}
-
 
 int main(void) {