I am now calling get_race far too often. Fix this a bit.

src/battle.c

@@ -1039,7 +1039,7 @@ static int rc_specialdamage(const unit *au, const unit *du, const struct weapon_
     if (wtype != NULL) {
         if (fval(u_race(du), RCF_DRAGON)) {
             static int cache;
-            static race *rc_halfling;
+            static const race *rc_halfling;
             if (rc_changed(&cache)) {
                 rc_halfling = get_race(RC_HALFLING);
             }

src/creport.c

@@ -1480,6 +1480,8 @@ report_computer(const char *filename, report_context * ctx, const char *charset)
     const char *mailto = LOC(f->locale, "mailto");
     const attrib *a;
     FILE *F = fopen(filename, "w");
+    static const race *rc_human;
+    static int rc_cache;
 
     if (era < 0) {
         era = config_get_int("world.era", 1);
@@ -1546,7 +1548,10 @@ report_computer(const char *filename, report_context * ctx, const char *charset)
     fprintf(F, "%d;Anzahl Personen\n", count_all(f));
     fprintf(F, "\"%s\";Magiegebiet\n", magic_school[f->magiegebiet]);
 
-    if (f->race == get_race(RC_HUMAN)) {
+    if (rc_changed(&rc_cache)) {
+        rc_human = rc_find("human");
+    }
+    if (f->race == rc_human) {
         fprintf(F, "%d;Anzahl Immigranten\n", count_migrants(f));
         fprintf(F, "%d;Max. Immigranten\n", count_maxmigrants(f));
     }

src/guard.c

@@ -69,7 +69,7 @@ unsigned int guard_flags(const unit * u)
 {
     // TODO: this should be a property of the race, like race.guard_flags
     static int rc_cache;
-    static race *rc_elf, *rc_ent, *rc_ironkeeper;
+    static const race *rc_elf, *rc_ent, *rc_ironkeeper;
     const race *rc = u_race(u);
     unsigned int flags =
         GUARD_CREWS | GUARD_LANDING | GUARD_TRAVELTHRU | GUARD_TAX;

src/kernel/faction.c

@@ -301,7 +301,7 @@ unit *addplayer(region * r, faction * f)
     fset(u, UFL_ISNEW);
     if (f->race == get_race(RC_DAEMON)) {
         race_t urc;
-        race *rc;
+        const race *rc;
         do {
             urc = (race_t)(rng_int() % MAXRACES);
             rc = get_race(urc);

src/kernel/race.c

@@ -75,7 +75,7 @@ static const char *racenames[MAXRACES] = {
     "clone"
 };
 
-struct race *get_race(race_t rt) {
+const struct race *get_race(race_t rt) {
     const char * name;
 
     assert(rt < MAXRACES);
@@ -83,7 +83,7 @@ struct race *get_race(race_t rt) {
     if (!name) {
         return NULL;
     }
-    return rc_get_or_create(name);
+    return rc_find(name);
 }
 
 race_list *get_familiarraces(void)
@@ -163,14 +163,12 @@ bool rc_changed(int *cache) {
     return false;
 }
 
-race *rc_get_or_create(const char *zName)
+race *rc_create(const char *zName)
 {
     race *rc;
     int i;
 
     assert(zName);
-    rc = rc_find_i(zName);
-    if (!rc) {
     rc = (race *)calloc(sizeof(race), 1);
     rc->hitpoints = 1;
     rc->weight = PERSON_WEIGHT;
@@ -193,8 +191,15 @@ race *rc_get_or_create(const char *zName)
     ++rc_changes;
     rc->next = races;
     return races = rc;
-    }
-    return rc;
+}
+
+race *rc_get_or_create(const char *zName)
+{
+    race *rc;
+
+    assert(zName);
+    rc = rc_find_i(zName);
+    return rc ? rc : rc_create(zName);
 }
 
 /** dragon movement **/

src/kernel/race.h

@@ -175,10 +175,11 @@ extern "C" {
 
     struct race_list *get_familiarraces(void);
     struct race *races;
-    struct race *get_race(race_t rt);
+    const struct race *get_race(race_t rt);
     /** TODO: compatibility hacks: **/
     race_t old_race(const struct race *);
 
+    race *rc_create(const char *zName);
     race *rc_get_or_create(const char *name);
     bool rc_changed(int *cache);
     const race *rc_find(const char *);
@@ -241,8 +242,6 @@ extern "C" {
     const char *racename(const struct locale *lang, const struct unit *u,
         const race * rc);
 
-#define omniscient(f) ((f)->race==get_race(RC_ILLUSION) || (f)->race==get_race(RC_TEMPLATE))
-
 #define playerrace(rc) (!fval((rc), RCF_NPC))
 #define dragonrace(rc) (fval(rc, RCF_DRAGON))
 #define humanoidrace(rc) (fval((rc), RCF_UNDEAD) || (rc)==get_race(RC_DRACOID) || playerrace(rc))

src/kernel/race.test.c

@@ -51,15 +51,15 @@ static void test_rc_find(CuTest *tc) {
 
 static void test_race_get(CuTest *tc) {
     int cache = 0;
-    race *rc;
+    const race *rc;
     test_setup();
     CuAssertTrue(tc, rc_changed(&cache));
     CuAssertTrue(tc, !rc_changed(&cache));
-    rc = get_race(RC_ELF);
-    CuAssertPtrEquals(tc, rc, (void *)rc_get_or_create("elf"));
+    rc = rc_get_or_create("elf");
+    CuAssertPtrEquals(tc, (void *)rc, (void *)get_race(RC_ELF));
     CuAssertTrue(tc, rc_changed(&cache));
     CuAssertTrue(tc, !rc_changed(&cache));
-    CuAssertPtrEquals(tc, rc, (void *)rc_find("elf"));
+    CuAssertPtrEquals(tc, (void *)rc, (void *)rc_find("elf"));
     free_races();
     CuAssertTrue(tc, rc_changed(&cache));
     test_cleanup();

src/kernel/skills.c

@@ -105,7 +105,7 @@ int skill_mod(const race * rc, skill_t sk, const struct terrain_type *terrain)
 {
     int result = 0;
     static int rc_cache;
-    static race *rc_dwarf, *rc_insect;
+    static const race *rc_dwarf, *rc_insect;
 
     if (rc_changed(&rc_cache)) {
         rc_dwarf = get_race(RC_DWARF);
@@ -140,7 +140,7 @@ int rc_skillmod(const struct race *rc, const region * r, skill_t sk)
     }
     if (r && r_isforest(r)) {
         static int rc_cache;
-        static race * rc_elf;
+        static const race * rc_elf;
         if (rc_changed(&rc_cache)) {
             rc_elf = get_race(RC_ELF);
         }

src/kernel/unit.test.c

@@ -102,7 +102,7 @@ static void test_remove_units_ignores_spells(CuTest *tc) {
     test_cleanup();
     test_create_world();
 
-    u = create_unit(findregion(0, 0), test_create_faction(test_create_race("human")), 1, get_race(RC_SPELL), 0, 0, 0);
+    u = create_unit(findregion(0, 0), test_create_faction(test_create_race("human")), 1, test_create_race("spell"), 0, 0, 0);
     uid = u->no;
     u->number = 0;
     u->age = 1;

src/laws.c

@@ -36,6 +36,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include "study.h"
 #include "wormhole.h"
 #include "prefix.h"
+#include "reports.h"
 #include "teleport.h"
 #include "calendar.h"
 #include "guard.h"

src/reports.c

@@ -104,6 +104,19 @@ const char *coasts[MAXDIRECTIONS] = {
     "coast::w"
 };
 
+bool omniscient(const faction *f)
+{
+    static const race *rc_template, *rc_illusion;
+    static int cache;
+    if (rc_changed(&cache)) {
+        rc_illusion = get_race(RC_ILLUSION);
+        rc_template = get_race(RC_TEMPLATE);
+    }
+    return (f->race == rc_template || f->race == rc_illusion);
+}
+
+
+
 static char *groupid(const struct group *g, const struct faction *f)
 {
     typedef char name[OBJECTIDSIZE + 1];

src/reports.h

@@ -48,6 +48,8 @@ extern "C" {
 
     struct unit *can_find(struct faction *, struct faction *);
 
+    bool omniscient(const struct faction *f);
+
     /* funktionen zum schreiben eines reports */
     void sparagraph(struct strlist **SP, const char *s, unsigned int indent, char mark);
     void lparagraph(struct strlist **SP, char *s, unsigned int indent, char mark);

src/spells.c

@@ -2730,9 +2730,9 @@ static int sp_firewall(castorder * co)
  *   (SPELLLEVEL | TESTCANSEE)
  */
 
-static race *unholy_race(const race *rc) {
+static const race *unholy_race(const race *rc) {
     static int cache;
-    static race * rc_skeleton, *rc_zombie, *rc_ghoul;
+    static const race * rc_skeleton, *rc_zombie, *rc_ghoul;
     if (rc_changed(&cache)) {
         rc_skeleton = get_race(RC_SKELETON);
         rc_zombie = get_race(RC_ZOMBIE);

src/study.c

@@ -95,7 +95,7 @@ magic_t getmagicskill(const struct locale * lang)
 bool is_migrant(unit * u)
 {
     static int cache;
-    static race *toad_rc;
+    static const race *toad_rc;
 
     if (u_race(u) == u->faction->race)
         return false;
@@ -113,7 +113,7 @@ bool is_migrant(unit * u)
 /* ------------------------------------------------------------- */
 bool magic_lowskill(unit * u)
 {
-    static race *toad_rc;
+    static const race *toad_rc;
     static int cache;
     if (rc_changed(&cache)) {
         toad_rc = get_race(RC_TOAD);

src/study.test.c

@@ -291,10 +291,10 @@ void test_learn_skill_multi(CuTest *tc) {
 
 static void test_demon_skillchanges(CuTest *tc) {
     unit * u;
-    race * rc;
+    const race * rc;
     test_setup();
     rc = test_create_race("demon");
-    CuAssertPtrEquals(tc, rc, get_race(RC_DAEMON));
+    CuAssertPtrEquals(tc, (void *)rc, (void *)get_race(RC_DAEMON));
     u = test_create_unit(test_create_faction(rc), test_create_region(0, 0, 0));
     CuAssertPtrNotNull(tc, u);
     set_level(u, SK_CROSSBOW, 1);