Add -d option

diff --git a/advent.h b/advent.h
index 4d1c9f39325e0f2f06e42e2f5fbe4037f4a0ed3b..8a31a9cf491abbc92179df3f8ce2cb26e9fbf6ba 100644 (file)
--- a/advent.h
+++ b/advent.h
@@ -200,6 +200,7 @@ struct settings_t {
     int argc;
     int optind;
     FILE *scriptfp;
+    int debug;
 };
 
 typedef struct {

diff --git a/main.c b/main.c
index f83c4e0dccb36ddc8e6d9a5e3b80ad08c33dcdb2..ab23ad99ed223646471fb1dcc021d4ac9f8a5da5 100644 (file)
--- a/main.c
+++ b/main.c
@@ -1261,20 +1261,23 @@ int main(int argc, char *argv[])
     /*  Options. */
 
 #if defined ADVENT_AUTOSAVE
-    const char* opts = "l:oa:";
+    const char* opts = "dl:oa:";
     const char* usage = "Usage: %s [-l logfilename] [-o] [-a filename] [script...]\n";
     FILE *rfp = NULL;
     const char* autosave_filename = NULL;
 #elif !defined ADVENT_NOSAVE
-    const char* opts = "l:or:";
+    const char* opts = "dl:or:";
     const char* usage = "Usage: %s [-l logfilename] [-o] [-r restorefilename] [script...]\n";
     FILE *rfp = NULL;
 #else
-    const char* opts = "l:o";
+    const char* opts = "dl:o";
     const char* usage = "Usage: %s [-l logfilename] [-o] [script...]\n";
 #endif
     while ((ch = getopt(argc, argv, opts)) != EOF) {
         switch (ch) {
+       case 'd':
+           settings.debug +=1;
+           break;
         case 'l':
             settings.logfp = fopen(optarg, "w");
             if (settings.logfp == NULL)

diff --git a/misc.c b/misc.c
index c6733d5fe285f6cc419122c594e93f9f60bea673..34d045c64ab37c1430f339c7bdf4e5cf656606e2 100644 (file)
--- a/misc.c
+++ b/misc.c
@@ -699,7 +699,7 @@ bool tstbit(int mask, int bit)
 }
 
 void set_seed(int32_t seedval)
-/* Set the LCG seed */
+/* Set the LCG1 seed */
 {
     game.lcg_x = seedval % LCG_M;
     if (game.lcg_x < 0) {
@@ -718,6 +718,9 @@ static int32_t get_next_lcg_value(void)
 {
     int32_t old_x = game.lcg_x;
     game.lcg_x = (LCG_A * game.lcg_x + LCG_C) % LCG_M;
+    if (settings.debug) {
+       printf("# random %d\n", old_x);
+    }
     return old_x;
 }