diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-08-31 08:24:36 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-08-31 08:24:36 +0000 |
commit | 22f249ebd7a142faacdf5edd7e196bd2149feae5 (patch) | |
tree | 9dcb6effef1e38e21bd02d4a74814fd5e04a43c9 /random.c | |
parent | b8597ccb1c5c56a701be13959661be11f1662b55 (diff) | |
download | ruby-22f249ebd7a142faacdf5edd7e196bd2149feae5.tar.gz |
* array.c (rb_ary_shuffle_bang): new method.
* array.c (rb_ary_shuffle): ditto.
* random.c (genrand_real): ditto.
* random.c (genrand_int32): export the function.
* random.c (Init_Random): initialize random seed at the
beginning.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10808 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'random.c')
-rw-r--r-- | random.c | 10 |
1 files changed, 3 insertions, 7 deletions
@@ -145,7 +145,7 @@ next_state(void) } /* generates a random number on [0,0xffffffff]-interval */ -static unsigned long +unsigned long genrand_int32(void) { unsigned long y; @@ -163,7 +163,7 @@ genrand_int32(void) } /* generates a random number on [0,1) with 53-bit resolution*/ -static double +double genrand_real(void) { unsigned long a=genrand_int32()>>5, b=genrand_int32()>>6; @@ -188,7 +188,6 @@ genrand_real(void) #include <fcntl.h> #endif -static int first = 1; static VALUE saved_seed = INT2FIX(0); static VALUE @@ -243,7 +242,6 @@ rand_init(VALUE vseed) len--; init_by_array(buf, len); } - first = 0; old = saved_seed; saved_seed = seed; free(buf); @@ -437,9 +435,6 @@ rb_f_rand(int argc, VALUE *argv, VALUE obj) long val, max; rb_scan_args(argc, argv, "01", &vmax); - if (first) { - rand_init(random_seed()); - } switch (TYPE(vmax)) { case T_FLOAT: if (RFLOAT(vmax)->value <= LONG_MAX && RFLOAT(vmax)->value >= LONG_MIN) { @@ -489,6 +484,7 @@ rb_f_rand(int argc, VALUE *argv, VALUE obj) void Init_Random(void) { + rand_init(random_seed()); rb_define_global_function("srand", rb_f_srand, -1); rb_define_global_function("rand", rb_f_rand, -1); rb_global_variable(&saved_seed); |