Address update by Richard Foley

[perl5.git] / util.c

diff --git a/util.c b/util.c
index 0d524e9..ae8c688 100644 (file)
--- a/util.c
+++ b/util.c
@@ -369,10 +369,9 @@ Free_t   Perl_mfree (Malloc_t where)
 /* copy a string up to some (non-backslashed) delimiter, if any */
 
 char *
-Perl_delimcpy(pTHX_ register char *to, register const char *toend, register const char *from, register const char *fromend, register int delim, I32 *retlen)
+Perl_delimcpy(register char *to, register const char *toend, register const char *from, register const char *fromend, register int delim, I32 *retlen)
 {
     register I32 tolen;
-    PERL_UNUSED_CONTEXT;
 
     PERL_ARGS_ASSERT_DELIMCPY;
 
@@ -400,10 +399,9 @@ Perl_delimcpy(pTHX_ register char *to, register const char *toend, register cons
 /* This routine was donated by Corey Satten. */
 
 char *
-Perl_instr(pTHX_ register const char *big, register const char *little)
+Perl_instr(register const char *big, register const char *little)
 {
     register I32 first;
-    PERL_UNUSED_CONTEXT;
 
     PERL_ARGS_ASSERT_INSTR;
 
@@ -435,10 +433,9 @@ Perl_instr(pTHX_ register const char *big, register const char *little)
 /* same as instr but allow embedded nulls */
 
 char *
-Perl_ninstr(pTHX_ const char *big, const char *bigend, const char *little, const char *lend)
+Perl_ninstr(const char *big, const char *bigend, const char *little, const char *lend)
 {
     PERL_ARGS_ASSERT_NINSTR;
-    PERL_UNUSED_CONTEXT;
     if (little >= lend)
         return (char*)big;
     {
@@ -462,12 +459,11 @@ Perl_ninstr(pTHX_ const char *big, const char *bigend, const char *little, const
 /* reverse of the above--find last substring */
 
 char *
-Perl_rninstr(pTHX_ register const char *big, const char *bigend, const char *little, const char *lend)
+Perl_rninstr(register const char *big, const char *bigend, const char *little, const char *lend)
 {
     register const char *bigbeg;
     register const I32 first = *little;
     register const char * const littleend = lend;
-    PERL_UNUSED_CONTEXT;
 
     PERL_ARGS_ASSERT_RNINSTR;
 
@@ -883,11 +879,10 @@ Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift
 }
 
 I32
-Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len)
+Perl_ibcmp(const char *s1, const char *s2, register I32 len)
 {
     register const U8 *a = (const U8 *)s1;
     register const U8 *b = (const U8 *)s2;
-    PERL_UNUSED_CONTEXT;
 
     PERL_ARGS_ASSERT_IBCMP;
 
@@ -900,12 +895,11 @@ Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len)
 }
 
 I32
-Perl_ibcmp_locale(pTHX_ const char *s1, const char *s2, register I32 len)
+Perl_ibcmp_locale(const char *s1, const char *s2, register I32 len)
 {
     dVAR;
     register const U8 *a = (const U8 *)s1;
     register const U8 *b = (const U8 *)s2;
-    PERL_UNUSED_CONTEXT;
 
     PERL_ARGS_ASSERT_IBCMP_LOCALE;
 
@@ -1387,7 +1381,6 @@ Perl_die_nocontext(const char* pat, ...)
     dTHX;
     OP *o;
     va_list args;
-    PERL_ARGS_ASSERT_DIE_NOCONTEXT;
     va_start(args, pat);
     o = vdie(pat, &args);
     va_end(args);
@@ -3033,26 +3026,36 @@ Perl_my_pclose(pTHX_ PerlIO *ptr)
 }
 #endif
 
+#define PERL_REPEATCPY_LINEAR 4
 void
-Perl_repeatcpy(pTHX_ register char *to, register const char *from, I32 len, register I32 count)
+Perl_repeatcpy(register char *to, register const char *from, I32 len, register I32 count)
 {
-    register I32 todo;
-    register const char * const frombase = from;
-    PERL_UNUSED_CONTEXT;
-
     PERL_ARGS_ASSERT_REPEATCPY;
 
-    if (len == 1) {
-       register const char c = *from;
-       while (count-- > 0)
-           *to++ = c;
-       return;
-    }
-    while (count-- > 0) {
-       for (todo = len; todo > 0; todo--) {
-           *to++ = *from++;
+    if (len == 1)
+       memset(to, *from, count);
+    else if (count) {
+       register char *p = to;
+       I32 items, linear, half;
+
+       linear = count < PERL_REPEATCPY_LINEAR ? count : PERL_REPEATCPY_LINEAR;
+       for (items = 0; items < linear; ++items) {
+           register const char *q = from;
+           I32 todo;
+           for (todo = len; todo > 0; todo--)
+               *p++ = *q++;
+        }
+
+       half = count / 2;
+       while (items <= half) {
+           I32 size = items * len;
+           memcpy(p, to, size);
+           p     += size;
+           items *= 2;
        }
-       from = frombase;
+
+       if (count > items)
+           memcpy(p, to, (count - items) * len);
     }
 }
 
@@ -3251,7 +3254,7 @@ Perl_find_script(pTHX_ const char *scriptname, bool dosearch,
            if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf)
                continue;       /* don't search dir with too-long name */
            if (len
-#  if defined(atarist) || defined(__MINT__) || defined(DOSISH)
+#  if defined(atarist) || defined(DOSISH)
                && tmpbuf[len - 1] != '/'
                && tmpbuf[len - 1] != '\\'
 #  endif