add comments

1 files changed, 3 insertions, 0 deletions

diff --git a/env.c b/env.c
index 8994598..6b94f0c 100644
--- a/env.c
+++ b/env.c
@@ -24,6 +24,7 @@ fhp_strings[] = {
 
 void
 fhp_env_init(fhp_env_t * const env) {
+  // calculate hashes for common strings
   for (size_t i = 0; fhp_strings[i]; i++)
     env->hashes[i] = fhp_lc_hash_string(fhp_strings[i]);
 }
@@ -34,10 +35,12 @@ fhp_env_t *
 fhp_get_default_env(void) {
   static fhp_env_t *r = NULL;
 
+  // lazy-init default environment
   if (!r) {
     r = &fhp_default_env;
     fhp_env_init(r);
   }
 
+  // return success
   return r;
 }