8 use Config qw(%Config);
10 $ENV{PERL_TEST_MEMORY} >= 4
11 or skip_all("Need ~4Gb for this test");
13 or skip_all("Need 64-bit pointers for this test");
17 # [perl #103260] [perl #123071]
19 $x .=" "x4096 for 1..2**30/4096;
20 is eval { $x =~ s/ /_/g }, 2**30, "subst on long strings" ;
21 is eval { $x =~ s/_/${\" "}/g },2**30,"subst on long strings (substcont)" ;