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ppport.h  view on Meta::CPAN

magic_setisa|||
magic_setmglob|||
magic_setnkeys|||
magic_setpack|||
magic_setpos|||
magic_setregexp|||
magic_setsig|||
magic_setsubstr|||
magic_settaint|||
magic_setutf8|||
magic_setuvar|||
magic_setvec|||
magic_set|||
magic_sizepack|||
magic_wipepack|||
make_matcher|||
make_trie_failtable|||
make_trie|||
malloc_good_size|||n
malloced_size|||n
malloc||5.007002|n
markstack_grow|||
matcher_matches_sv|||
mayberelocate|||
measure_struct|||
memEQs|5.009005||p
memEQ|5.004000||p
memNEs|5.009005||p
memNE|5.004000||p
mem_collxfrm|||
mem_log_common|||n
mess_alloc|||
mess_nocontext|||vn
mess_sv||5.013001|
mess||5.006000|v
method_common|||
mfree||5.007002|n
mg_clear|||
mg_copy|||
mg_dup|||
mg_find_mglob|||
mg_findext|5.013008|5.013008|p
mg_find|||
mg_free_type||5.013006|
mg_free|||
mg_get|||
mg_length||5.005000|
mg_localize|||
mg_magical|||
mg_set|||
mg_size||5.005000|
mini_mktime||5.007002|
minus_v|||
missingterm|||
mode_from_discipline|||
modkids|||
more_bodies|||
more_sv|||
moreswitches|||
mro_clean_isarev|||
mro_gather_and_rename|||
mro_get_from_name||5.010001|
mro_get_linear_isa_dfs|||
mro_get_linear_isa||5.009005|
mro_get_private_data||5.010001|
mro_isa_changed_in|||
mro_meta_dup|||
mro_meta_init|||
mro_method_changed_in||5.009005|
mro_package_moved|||
mro_register||5.010001|
mro_set_mro||5.010001|
mro_set_private_data||5.010001|
mul128|||
mulexp10|||n
my_atof2||5.007002|
my_atof||5.006000|
my_attrs|||
my_bcopy|||n
my_bzero|||n
my_chsize|||
my_clearenv|||
my_cxt_index|||
my_cxt_init|||
my_dirfd||5.009005|
my_exit_jump|||
my_exit|||
my_failure_exit||5.004000|
my_fflush_all||5.006000|
my_fork||5.007003|n
my_kid|||
my_lstat_flags|||
my_lstat||5.019003|
my_memcmp|||n
my_memset||5.004000|n
my_pclose||5.004000|
my_popen_list||5.007001|
my_popen||5.004000|
my_setenv|||
my_snprintf|5.009004||pvn
my_socketpair||5.007003|n
my_sprintf|5.009003||pvn
my_stat_flags|||
my_stat||5.019003|
my_strftime||5.007002|
my_strlcat|5.009004||pn
my_strlcpy|5.009004||pn
my_unexec|||
my_vsnprintf||5.009004|n
need_utf8|||n
newANONATTRSUB||5.006000|
newANONHASH|||
newANONLIST|||
newANONSUB|||
newASSIGNOP|||
newATTRSUB_flags|||
newATTRSUB||5.006000|
newAVREF|||
newAV|||
newBINOP|||
newCONDOP|||

ppport.h  view on Meta::CPAN

    s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
    s++; if (s == send || (*s != 'F' && *s != 'f')) return 0;
    s++; if (s < send && (*s == 'I' || *s == 'i')) {
      s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
      s++; if (s == send || (*s != 'I' && *s != 'i')) return 0;
      s++; if (s == send || (*s != 'T' && *s != 't')) return 0;
      s++; if (s == send || (*s != 'Y' && *s != 'y')) return 0;
      s++;
    }
    sawinf = 1;
  } else if (*s == 'N' || *s == 'n') {
    /* XXX TODO: There are signaling NaNs and quiet NaNs. */
    s++; if (s == send || (*s != 'A' && *s != 'a')) return 0;
    s++; if (s == send || (*s != 'N' && *s != 'n')) return 0;
    s++;
    sawnan = 1;
  } else
    return 0;

  if (sawinf) {
    numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
    numtype |= IS_NUMBER_INFINITY | IS_NUMBER_NOT_INT;
  } else if (sawnan) {
    numtype &= IS_NUMBER_NEG; /* Keep track of sign  */
    numtype |= IS_NUMBER_NAN | IS_NUMBER_NOT_INT;
  } else if (s < send) {
    /* we can have an optional exponent part */
    if (*s == 'e' || *s == 'E') {
      /* The only flag we keep is sign.  Blow away any "it's UV"  */
      numtype &= IS_NUMBER_NEG;
      numtype |= IS_NUMBER_NOT_INT;
      s++;
      if (s < send && (*s == '-' || *s == '+'))
        s++;
      if (s < send && isDIGIT(*s)) {
        do {
          s++;
        } while (s < send && isDIGIT(*s));
      }
      else
      return 0;
    }
  }
  while (s < send && isSPACE(*s))
    s++;
  if (s >= send)
    return numtype;
  if (len == 10 && memEQ(pv, "0 but true", 10)) {
    if (valuep)
      *valuep = 0;
    return IS_NUMBER_IN_UV;
  }
  return 0;
}
#endif
#endif

/*
 * The grok_* routines have been modified to use warn() instead of
 * Perl_warner(). Also, 'hexdigit' was the former name of PL_hexdigit,
 * which is why the stack variable has been renamed to 'xdigit'.
 */

#ifndef grok_bin
#if defined(NEED_grok_bin)
static UV DPPP_(my_grok_bin)(pTHX_ const char * start, STRLEN * len_p, I32 * flags, NV * result);
static
#else
extern UV DPPP_(my_grok_bin)(pTHX_ const char * start, STRLEN * len_p, I32 * flags, NV * result);
#endif

#ifdef grok_bin
#  undef grok_bin
#endif
#define grok_bin(a,b,c,d) DPPP_(my_grok_bin)(aTHX_ a,b,c,d)
#define Perl_grok_bin DPPP_(my_grok_bin)

#if defined(NEED_grok_bin) || defined(NEED_grok_bin_GLOBAL)
UV
DPPP_(my_grok_bin)(pTHX_ const char *start, STRLEN *len_p, I32 *flags, NV *result)
{
    const char *s = start;
    STRLEN len = *len_p;
    UV value = 0;
    NV value_nv = 0;

    const UV max_div_2 = UV_MAX / 2;
    bool allow_underscores = *flags & PERL_SCAN_ALLOW_UNDERSCORES;
    bool overflowed = FALSE;

    if (!(*flags & PERL_SCAN_DISALLOW_PREFIX)) {
        /* strip off leading b or 0b.
           for compatibility silently suffer "b" and "0b" as valid binary
           numbers. */
        if (len >= 1) {
            if (s[0] == 'b') {
                s++;
                len--;
            }
            else if (len >= 2 && s[0] == '0' && s[1] == 'b') {
                s+=2;
                len-=2;
            }
        }
    }

    for (; len-- && *s; s++) {
        char bit = *s;
        if (bit == '0' || bit == '1') {
            /* Write it in this wonky order with a goto to attempt to get the
               compiler to make the common case integer-only loop pretty tight.
               With gcc seems to be much straighter code than old scan_bin.  */
          redo:
            if (!overflowed) {
                if (value <= max_div_2) {
                    value = (value << 1) | (bit - '0');
                    continue;
                }
                /* Bah. We're just overflowed.  */
                warn("Integer overflow in binary number");
                overflowed = TRUE;