IEEE math for the masses

[p5sagit/p5-mst-13.2.git] / pp.c

diff --git a/pp.c b/pp.c
index 8d1012b..2ba5b61 100644 (file)
--- a/pp.c
+++ b/pp.c
@@ -35,6 +35,14 @@
 extern Pid_t getpid (void);
 #endif
 
+/*
+ * Some BSDs and Cygwin default to POSIX math instead of IEEE.
+ * This switches them over to IEEE.
+ */
+#if defined(LIBM_LIB_VERSION)
+    _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_;
+#endif
+
 /* variations on pp_null */
 
 PP(pp_stub)
@@ -175,12 +183,11 @@ PP(pp_rv2gv)
                    if (SvTYPE(sv) < SVt_RV)
                        sv_upgrade(sv, SVt_RV);
                    if (SvPVX(sv)) {
-                       SvOOK_off(sv);          /* backoff */
-                       if (SvLEN(sv))
-                           Safefree(SvPVX(sv));
-                       SvLEN(sv)=SvCUR(sv)=0;
+                       SvPV_free(sv);
+                       SvLEN_set(sv, 0);
+                        SvCUR_set(sv, 0);
                    }
-                   SvRV(sv) = (SV*)gv;
+                   SvRV_set(sv, (SV*)gv);
                    SvROK_on(sv);
                    SvSETMAGIC(sv);
                    goto wasref;
@@ -493,7 +500,7 @@ S_refto(pTHX_ SV *sv)
     }
     rv = sv_newmortal();
     sv_upgrade(rv, SVt_RV);
-    SvRV(rv) = sv;
+    SvRV_set(rv, sv);
     SvROK_on(rv);
     return rv;
 }
@@ -824,8 +831,7 @@ PP(pp_undef)
        break;
     default:
        if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
-           SvOOK_off(sv);
-           Safefree(SvPVX(sv));
+           SvPV_free(sv);
            SvPV_set(sv, Nullch);
            SvLEN_set(sv, 0);
        }
@@ -1488,13 +1494,13 @@ PP(pp_repeat)
            if (count < 1)
                SvCUR_set(TARG, 0);
            else {
-               IV max = count * len;
+               STRLEN max = (UV)count * len;
                if (len > ((MEM_SIZE)~0)/count)
                     Perl_croak(aTHX_ oom_string_extend);
                MEM_WRAP_CHECK_1(max, char, oom_string_extend);
-               SvGROW(TARG, (count * len) + 1);
+               SvGROW(TARG, max + 1);
                repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
-               SvCUR(TARG) *= count;
+               SvCUR_set(TARG, SvCUR(TARG) * count);
            }
            *SvEND(TARG) = '\0';
        }
@@ -2523,7 +2529,7 @@ STATIC
 PP(pp_i_modulo_0)
 {
      /* This is the vanilla old i_modulo. */
-     dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
+     dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
      {
          dPOPTOPiirl;
          if (!right)
@@ -2540,7 +2546,7 @@ PP(pp_i_modulo_1)
      /* This is the i_modulo with the workaround for the _moddi3 bug
       * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround).
       * See below for pp_i_modulo. */
-     dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
+     dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
      {
          dPOPTOPiirl;
          if (!right)
@@ -2553,7 +2559,7 @@ PP(pp_i_modulo_1)
 
 PP(pp_i_modulo)
 {
-     dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
+     dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN);
      {
          dPOPTOPiirl;
          if (!right)
@@ -3395,8 +3401,8 @@ PP(pp_chr)
 
 PP(pp_crypt)
 {
-    dSP; dTARGET;
 #ifdef HAS_CRYPT
+    dSP; dTARGET;
     dPOPTOPssrl;
     STRLEN n_a;
     STRLEN len;
@@ -4144,7 +4150,7 @@ PP(pp_anonhash)
 
 PP(pp_splice)
 {
-    dSP; dMARK; dORIGMARK;
+    dVAR; dSP; dMARK; dORIGMARK;
     register AV *ary = (AV*)*++MARK;
     register SV **src;
     register SV **dst;
@@ -4258,7 +4264,7 @@ PP(pp_splice)
                    *dst-- = *src--;
            }
            dst = AvARRAY(ary);
-           SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
+           SvPV_set(ary, (char*)(AvARRAY(ary) - diff)); /* diff is negative */
            AvMAX(ary) += diff;
        }
        else {
@@ -4295,7 +4301,7 @@ PP(pp_splice)
                    dst = src - diff;
                    Move(src, dst, offset, SV*);
                }
-               SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
+               SvPV_set(ary, (char*)(AvARRAY(ary) - diff));/* diff is positive */
                AvMAX(ary) += diff;
                AvFILLp(ary) += diff;
            }
@@ -4351,7 +4357,7 @@ PP(pp_splice)
 
 PP(pp_push)
 {
-    dSP; dMARK; dORIGMARK; dTARGET;
+    dVAR; dSP; dMARK; dORIGMARK; dTARGET;
     register AV *ary = (AV*)*++MARK;
     register SV *sv = &PL_sv_undef;
     MAGIC *mg;
@@ -4406,7 +4412,7 @@ PP(pp_shift)
 
 PP(pp_unshift)
 {
-    dSP; dMARK; dORIGMARK; dTARGET;
+    dVAR; dSP; dMARK; dORIGMARK; dTARGET;
     register AV *ary = (AV*)*++MARK;
     register SV *sv;
     register I32 i = 0;
@@ -4508,7 +4514,7 @@ PP(pp_reverse)
 
 PP(pp_split)
 {
-    dSP; dTARG;
+    dVAR; dSP; dTARG;
     AV *ary;
     register IV limit = POPi;                  /* note, negative is forever */
     SV *sv = POPs;