1 files changed, 3 insertions, 2 deletions

diff --git a/lib/st-decode.cc b/lib/st-decode.cc
index b354250..81cbb8f 100644
--- a/lib/st-decode.cc
+++ b/lib/st-decode.cc
@@ -1,50 +1,51 @@
-#include <stdlib.h>
-#include <string.h>
+#include <stdint.h>
+#include <cstdlib>
+#include <cstring>
 #include <stdexcept>
 #include <numeric>
 #include <napkin/exception.h>
 #include <napkin/st/decode.h>
 
 namespace napkin {
     namespace sleeptracker {
         using std::invalid_argument;
         using std::runtime_error;
 
         struct st_time_t {
             uint8_t hour;
             uint8_t min;
         };
         struct st_date_t {
             uint8_t month;
             uint8_t day;
             uint8_t dow;
         };
         struct st_fulltime_t {
             uint8_t hour;
             uint8_t min;
             uint8_t sec;
         };
         struct st_data_header_t {
             char magic;
             st_date_t today;
             uint8_t window;
             st_time_t to_bed;
             st_time_t alarm;
             uint8_t nawakes;
         };
         struct st_data_footer_t {
             uint16_t data_a;
             uint8_t checksum;
             uint8_t eof_mark;
         };
 
         static void back_a_day(struct tm& t) {
             time_t ts = mktime(&t);
             if(ts==(time_t)-1)
                 throw exception_st_data("failed to make up time to step back a day");
             ts -= 60*60*24;
             if(!localtime_r(&ts,&t))
                 throw exception_st_data("failed to localtime_r() while stepping back a day");
         }
 
         hypnodata_t& decode(hypnodata_t& rv,const void *data,size_t data_length) {