diff options
Diffstat (limited to 'runtime')
| -rw-r--r-- | runtime/doc/builtin.txt | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt index 8d88c533f0..327b8dc4d9 100644 --- a/runtime/doc/builtin.txt +++ b/runtime/doc/builtin.txt @@ -5533,7 +5533,7 @@ range({expr} [, {max} [, {stride}]]) *range()* GetExpr()->range() < rand([{expr}]) *rand()* - Return a pseudo-random Number generated with an xorshift + Return a pseudo-random Number generated with an xoshiro128** algorithm using seed {expr}. The returned number is 32 bits, also on 64 bits systems, for consistency. {expr} can be initialized by |srand()| and will be updated by @@ -7200,11 +7200,11 @@ sqrt({expr}) *sqrt()* srand([{expr}]) *srand()* Initialize seed used by |rand()|: - If {expr} is not given, seed values are initialized by - time(NULL) a.k.a. epoch time. This only has second - accuracy. - - If {expr} is given, return seed values which x element is - {expr}. This is useful for testing or when a predictable - sequence is expected. + reading from /dev/urandom, if possible, or using time(NULL) + a.k.a. epoch time otherwise; this only has second accuracy. + - If {expr} is given it must be a Number. It is used to + initialize the seed values. This is useful for testing or + when a predictable sequence is intended. Examples: > :let seed = srand() |