1 files changed, 4 insertions, 3 deletions
diff --git a/misc.cc b/misc.cc
index c9d38cb..3f15520 100644
--- a/misc.cc
+++ b/misc.cc
@@ -13,10 +13,11 @@ std::vector<uint8_t> hex_string_to_byte(const char* hexString){
     const size_t big_string_size = 256; //arbitrary 'big' number
     const size_t s_size = strlen(hexString);
     const size_t d_size = s_size/2;
-    if (s_size%2!=0 || s_size==0 || s_size>big_string_size){
+    if (s_size%2!=0 || s_size>big_string_size){
         throw InvalidHexString(0);
     }
-    auto data = std::vector<uint8_t>(d_size, 0);
+    auto data = std::vector<uint8_t>();
+    data.reserve(d_size);
 
     char buf[2];
     for(int i=0; i<s_size; i++){
@@ -28,7 +29,7 @@ std::vector<uint8_t> hex_string_to_byte(const char* hexString){
         }
         buf[i%2] = c;
         if (i%2==1){
-            data[i/2] = strtoul(buf, NULL, 16) & 0xFF;
+            data.push_back( strtoul(buf, NULL, 16) & 0xFF );
         }
     }
     return data;