1 files changed, 8 insertions, 8 deletions

diff --git a/src/2016/day12/aoc.cpp b/src/2016/day12/aoc.cpp
index bd3a395..2b853ec 100644
--- a/src/2016/day12/aoc.cpp
+++ b/src/2016/day12/aoc.cpp
@@ -4,9 +4,9 @@ namespace aoc2016 {
 
 static int registers[4] = {0, 0, 0, 0};
 
-int& get(int i) { return registers[i]; }
+static int& get(int i) { return registers[i]; }
 // c = a,b,c,d
-int& get(char c) { return get(c - 'a'); }
+static int& get(char c) { return get(c - 'a'); }
 
 struct instruction {
   line_view todo;
@@ -47,7 +47,7 @@ static void get_number(const char** pp, int* d) {
 }
 
 typedef void (*todo_f)(size_t*, const char*);
-void cpy(size_t* i, const char* p) {
+static void cpy(size_t* i, const char* p) {
   int d{0};
   if (*p >= '0' && *p <= '9') {
     get_number(&p, &d);
@@ -60,17 +60,17 @@ void cpy(size_t* i, const char* p) {
   *i += 1;
 }
 
-void inc(size_t* i, const char* p) {
+static void inc(size_t* i, const char* p) {
   get(*p) += 1;
   *i += 1;
 }
 
-void dec(size_t* i, const char* p) {
+static void dec(size_t* i, const char* p) {
   get(*p) -= 1;
   *i += 1;
 }
 
-void jnz(size_t* i, const char* p) {
+static void jnz(size_t* i, const char* p) {
   bool condition = *p >= '0' && *p <= '9' ? *p - '0' : get(*p) != 0;
   if (condition) {
     p += 2;
@@ -82,9 +82,9 @@ void jnz(size_t* i, const char* p) {
   }
 }
 
-void non(size_t* i, const char* p) { *i += 1; }
+static void non(size_t* i, const char* p) { *i += 1; }
 
-size_t exec(size_t i, const std::vector<instruction>& todos) {
+static size_t exec(size_t i, const std::vector<instruction>& todos) {
   if (i < todos.size()) {
     todo_f fs[5] = {cpy, inc, dec, jnz, non};
     auto d = todos[i];