fix Warnings

build.sh

@@ -2,5 +2,5 @@
 set -eux
 cargo build
 BASEDIR="$( cd "$( dirname "$0" )" && pwd )"
-gcc -o main examples/basic.c -L${BASEDIR}/target/debug/ -lrs_fsrs_c -I${BASEDIR}/include/
-env LD_LIBRARY_PATH=${BASEDIR}/target/debug/ ./main
+gcc -o a.out examples/basic.c -L${BASEDIR}/target/debug/ -lrs_fsrs_c -I${BASEDIR}/include/ -Wall -Wextra -pedantic
+env LD_LIBRARY_PATH=${BASEDIR}/target/debug/ ./a.out

examples/basic.c

@@ -1,10 +1,11 @@
 #include "../include/fsrs.h"
+#include <inttypes.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <time.h>
 
 int main(void) {
- fsrs_Fsrs F1 = fsrs_Fsrs_new(
+ fsrs_Fsrs _F1 = fsrs_Fsrs_new(
  (fsrs_Parameters){.maximum_interval = 36000,
  .request_retention = 0.9,
  .w = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
@@ -26,8 +27,11 @@ int main(void) {
  fsrs_Card card = fsrs_SchedulingInfo_card(&scheduling_info);
  fsrs_ReviewLog log = fsrs_SchedulingInfo_review_log(&scheduling_info);
 
- printf("scheduled_days: %ld\nelapsed_days: %ld\ndate: %srating: %d\nstate: "
- "%d\n",
+ printf("scheduled_days: %" PRId64 "\nelapsed_days: %" PRId64
+ "\ndate: %s"
+ "rating: %d"
+ "\nstate: %d"
+ "\n",
  log.scheduled_days, log.elapsed_days,
  asctime(localtime(&log.reviewed_date_s)), log.rating, log.state);
  printf("card:\n elapsed_days: %ld\n scheduled_days: %ld\n due: %ld\n "