diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5b6db61..b4391be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,12 +6,12 @@ set(CMAKE_C_STANDARD 99)
 include_directories(include)
 
 set(SOURCES
-    src/linkedlist.c
-    src/set.c
-    src/stack.c
-    src/binarytree.c
-    src/input.c
-    src/math.c
+    src/lflinkedlist.c
+    src/lfset.c
+    src/lfstack.c
+    src/lfbinarytree.c
+    src/lfinput.c
+    src/lfmath.c
 )
 
 add_library(flint ${SOURCES})
diff --git a/include/binarytree.h b/include/lfbinarytree.h
similarity index 100%
rename from include/binarytree.h
rename to include/lfbinarytree.h
diff --git a/include/input.h b/include/lfinput.h
similarity index 100%
rename from include/input.h
rename to include/lfinput.h
diff --git a/include/linkedlist.h b/include/lflinkedlist.h
similarity index 100%
rename from include/linkedlist.h
rename to include/lflinkedlist.h
diff --git a/include/math.h b/include/lfmath.h
similarity index 100%
rename from include/math.h
rename to include/lfmath.h
diff --git a/include/set.h b/include/lfset.h
similarity index 95%
rename from include/set.h
rename to include/lfset.h
index 1589f6a..75636f3 100644
--- a/include/set.h
+++ b/include/lfset.h
@@ -1,7 +1,7 @@
 #ifndef LIBFLINT_SET_H
 #define LIBFLINT_SET_H
 
-#include "linkedlist.h"
+#include "lflinkedlist.h"
 
 #define Set List
 
diff --git a/include/stack.h b/include/lfstack.h
similarity index 91%
rename from include/stack.h
rename to include/lfstack.h
index 5457afb..59894b3 100644
--- a/include/stack.h
+++ b/include/lfstack.h
@@ -1,7 +1,7 @@
 #ifndef LIBFLINT_STACK_H
 #define LIBFLINT_STACK_H
 
-#include "linkedlist.h"
+#include "lflinkedlist.h"
 
 #define Stack List
 
diff --git a/src/binarytree.c b/src/lfbinarytree.c
similarity index 99%
rename from src/binarytree.c
rename to src/lfbinarytree.c
index e9fe047..e0a7035 100644
--- a/src/binarytree.c
+++ b/src/lfbinarytree.c
@@ -2,7 +2,7 @@
 #include <string.h>
 #include <stdio.h>
 
-#include "binarytree.h"
+#include "lfbinarytree.h"
 
 void bintree_init(BinTree *tree, void (*destroy)(void *data)) {
     tree->size = 0;
diff --git a/src/input.c b/src/lfinput.c
similarity index 95%
rename from src/input.c
rename to src/lfinput.c
index f892896..3ceb28c 100644
--- a/src/input.c
+++ b/src/lfinput.c
@@ -7,7 +7,7 @@
 #include <bsd/stdlib.h>
 #endif
 
-#include "input.h"
+#include "lfinput.h"
 
 char *get_input(const char *path) {
     FILE *fp = NULL;
@@ -67,7 +67,7 @@ int *get_ints(const char *path, size_t *sz) {
     for (size_t idx = 0; idx < *sz; idx++) {
         int n;
         const char *errstr;
-        n = strtonum(lines[idx], INT_MIN, INT_MAX, &errstr);
+        n = (int)strtonum(lines[idx], INT_MIN, INT_MAX, &errstr);
         if (errstr) {
             printf("Failed to convert %s to int. Returning NULL\n", lines[idx]);
             exit(1);
diff --git a/src/linkedlist.c b/src/lflinkedlist.c
similarity index 99%
rename from src/linkedlist.c
rename to src/lflinkedlist.c
index 32da095..1690a6e 100644
--- a/src/linkedlist.c
+++ b/src/lflinkedlist.c
@@ -1,7 +1,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-#include "linkedlist.h"
+#include "lflinkedlist.h"
 
 void ll_init(List* list, void (*destroy)(void *data)) {
     list->size = 0;
diff --git a/src/math.c b/src/lfmath.c
similarity index 82%
rename from src/math.c
rename to src/lfmath.c
index 13a4647..cea4835 100644
--- a/src/math.c
+++ b/src/lfmath.c
@@ -1,6 +1,6 @@
 #include <string.h>
 
-#include "math.h"
+#include "lfmath.h"
 
 int max_int(int a, int b) {
     if (a > b) {
@@ -18,7 +18,7 @@ int min_int(int a, int b) {
 
 int binstr_to_int(const char *s) {
     int n = 0, m = 1;
-    for (size_t i = strlen(s) - 1; i >= 0; --i) {
+    for (int i = (int)strlen(s) - 1; i >= 0; --i) {
         if (s[i] == '1') {
             n += m;
         }
diff --git a/src/set.c b/src/lfset.c
similarity index 99%
rename from src/set.c
rename to src/lfset.c
index 750c796..b726e51 100644
--- a/src/set.c
+++ b/src/lfset.c
@@ -1,4 +1,4 @@
-#include "set.h"
+#include "lfset.h"
 
 void set_init(Set* set, int (*match)(const void* a, const void* b),
               void (*destroy)(void* data)) {
diff --git a/src/stack.c b/src/lfstack.c
similarity index 96%
rename from src/stack.c
rename to src/lfstack.c
index 64858fe..022a8f4 100644
--- a/src/stack.c
+++ b/src/lfstack.c
@@ -1,4 +1,4 @@
-#include "stack.h"
+#include "lfstack.h"
 
 void stack_init(Stack* stack, void (*destroy)(void* data)) {
     ll_init(stack, destroy);
diff --git a/tests/tests.c b/tests/tests.c
index 4899858..c6a948a 100644
--- a/tests/tests.c
+++ b/tests/tests.c
@@ -1,10 +1,11 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "linkedlist.h"
-#include "set.h"
-#include "stack.h"
-#include "binarytree.h"
+#include "lflinkedlist.h"
+#include "lfset.h"
+#include "lfstack.h"
+#include "lfbinarytree.h"
+#include "lfmath.h"
 
 void print_ll(List* list) {
     for (ListNode* node = list->head; node != NULL; node = node->next) {
@@ -146,10 +147,22 @@ void test_bintree() {
     bintree_destroy(tree);
 }
 
+void test_math() {
+    printf("\n--- MATH TEST ---\n");
+    int i = 1, j = 2;
+    printf("Between %d and %d, %d is larger\n", i, j, max_int(i, j));
+    printf("Between %d and %d, %d is smaller\n", i, j, min_int(i, j));
+
+    char *s = "1010110";
+    printf("Binary: %s\n", s);
+    printf("Decimal: %d\n", binstr_to_int(s));
+}
+
 int main() {
     test_ll();
     test_set();
     test_stack();
     test_bintree();
+    test_math();
     return 0;
 }
\ No newline at end of file