Declare some function arguments as const.

Some functions, mostly in fight.c, declared variables as pointers to
const char but passed them to functions that took pointers to ordinary
char.  The strings did not actually get modified, so adding 'const' to
the function definitions removed the warnings.

arogue5/fight.c

@@ -20,17 +20,18 @@
 
 bool roll_em(struct thing *att_er, struct thing *def_er, struct object *weap, 
              bool hurl, struct object *cur_weapon, bool back_stab);
-void hit(struct object *weapon, struct thing *tp, char *er, char *ee, 
+void hit(struct object *weapon, struct thing *tp, const char *er,
-         bool back_stab);
+         const char *ee, bool back_stab);
-void miss(struct object *weapon, struct thing *tp, char *er, char *ee);
+void miss(struct object *weapon, struct thing *tp, const char *er, 
+          const char *ee);
 int dext_plus(int dexterity);
 int str_plus(short str);
 int add_dam(short str);
 int hung_dam(void);
-void thunk(struct object *weap, struct thing *tp, char *mname);
+void thunk(struct object *weap, struct thing *tp, const char *mname);
-void m_thunk(struct object *weap, struct thing *tp, char *mname);
+void m_thunk(struct object *weap, struct thing *tp, const char *mname);
-void bounce(struct object *weap, struct thing *tp, char *mname);
+void bounce(struct object *weap, struct thing *tp, const char *mname);
-void m_bounce(struct object *weap, struct thing *tp, char *mname);
+void m_bounce(struct object *weap, struct thing *tp, const char *mname);
 struct object *wield_weap(struct object *thrown, struct thing *mp);
 void explode(struct thing *tp);
 
@@ -1037,7 +1038,7 @@ roll_em(struct thing *att_er, struct thing *def_er, struct object *weap,
  */
 
 char *
-prname(char *who, bool upper)
+prname(const char *who, bool upper)
 {
     static char tbuf[LINELEN];
 
@@ -1062,7 +1063,8 @@ prname(char *who, bool upper)
  */
 
 void
-hit(struct object *weapon, struct thing *tp, char *er, char *ee, bool back_stab)
+hit(struct object *weapon, struct thing *tp, const char *er, const char *ee, 
+    bool back_stab)
 {
     register char *s = NULL;
     char 
@@ -1119,7 +1121,7 @@ hit(struct object *weapon, struct thing *tp, char *er, char *ee, bool back_stab)
  */
 
 void
-miss(struct object *weapon, struct thing *tp, char *er, char *ee)
+miss(struct object *weapon, struct thing *tp, const char *er, const char *ee)
 {
     register char *s = NULL;
     char
@@ -1226,7 +1228,7 @@ hung_dam(void)
  */
 
 void
-thunk(struct object *weap, struct thing *tp, char *mname)
+thunk(struct object *weap, struct thing *tp, const char *mname)
 {
     /* tp: Defender */
     char *def_name;	/* Name of defender */
@@ -1254,7 +1256,7 @@ thunk(struct object *weap, struct thing *tp, char *mname)
  */
 
 void
-m_thunk(struct object *weap, struct thing *tp, char *mname)
+m_thunk(struct object *weap, struct thing *tp, const char *mname)
 {
     char *att_name;	/* Name of attacker */
 
@@ -1281,7 +1283,7 @@ m_thunk(struct object *weap, struct thing *tp, char *mname)
  */
 
 void
-bounce(struct object *weap, struct thing *tp, char *mname)
+bounce(struct object *weap, struct thing *tp, const char *mname)
 {
     /* tp: Defender */
     char *def_name;	/* Name of defender */
@@ -1309,7 +1311,7 @@ bounce(struct object *weap, struct thing *tp, char *mname)
  */
 
 void
-m_bounce(struct object *weap, struct thing *tp, char *mname)
+m_bounce(struct object *weap, struct thing *tp, const char *mname)
 {
     char *att_name;	/* Name of attacker */
 

rogue4/fight.c

@@ -22,8 +22,8 @@ long e_levels[] = {
 };
 
 bool roll_em(THING *thatt, THING *thdef, THING *weap, bool hurl);
-void hit(char *er, char *ee);
+void hit(const char *er, const char *ee);
-void miss(char *er, char *ee);
+void miss(const char *er, const char *ee);
 int str_plus(str_t str);
 int add_dam(str_t str);
 void thunk(THING *weap, const char *mname);
@@ -446,7 +446,7 @@ roll_em(THING *thatt, THING *thdef, THING *weap, bool hurl)
  *	The print name of a combatant
  */
 char *
-prname(char *who, bool upper)
+prname(const char *who, bool upper)
 {
     static char tbuf[MAXSTR];
 
@@ -470,7 +470,7 @@ prname(char *who, bool upper)
  *	Print a message to indicate a succesful hit
  */
 void
-hit(char *er, char *ee)
+hit(const char *er, const char *ee)
 {
     register char *s = "";
 
@@ -496,7 +496,7 @@ hit(char *er, char *ee)
  *	Print a message to indicate a poor swing
  */
 void
-miss(char *er, char *ee)
+miss(const char *er, const char *ee)
 {
     register char *s = "";
 

rogue4/misc.c

@@ -345,7 +345,7 @@ aggravate(void)
  *	"an".
  */
 char *
-vowelstr(char *str)
+vowelstr(const char *str)
 {
     switch (*str)
     {

rogue4/rogue.h

@@ -619,7 +619,7 @@ void    unconfuse(void);
 char   *unctrol(char ch);
 void    unlock_sc(void);
 void    unsee(void);
-char   *vowelstr(char *str);
+char   *vowelstr(const char *str);
 char   *xcrypt(const char *key, const char *setting);
 void    w_wait_for(WINDOW *win, char ch);
 void    wait_for(char ch);