From ab27e8699ef2a2bafe574158200993f184de3dc2 Mon Sep 17 00:00:00 2001 From: Serge Aleynikov Date: Mon, 21 Jan 2013 15:36:43 +0100 Subject: Text representation of a float formatted using given options. This BIF solves a problem of float_to_list/1 that doesn't allow specifying the number of digits after the decimal point when formatting floats. float_to_list(Float, Options) -> string() Float = float() Options = [Option] Option = {decimals, Decimals::0..249} | {scientific, Decimals::0..249} | compact Returns a string which corresponds to the text representation of a `Float` formatted using given options. When decimals option is specified the returned value will contain at most `Decimals` number of digits past the decimal point. When `compact` option is provided the trailing zeros at the end of the list are truncated (this option is only meaningful together with the `decimals` option). When `scientific` option is provided, the float will be formatted using scientific notation with `Decimals` digits of precision. If `Options` is `[]` the function behaves like `float_to_list/1`. When using `decimals` option and the number doesn't fit in the static internal buffer of 256 bytes the function throws `badarg`. --- erts/emulator/beam/atom.names | 3 +++ 1 file changed, 3 insertions(+) (limited to 'erts/emulator/beam/atom.names') diff --git a/erts/emulator/beam/atom.names b/erts/emulator/beam/atom.names index c47a608215..b74e2785e5 100644 --- a/erts/emulator/beam/atom.names +++ b/erts/emulator/beam/atom.names @@ -144,6 +144,7 @@ atom close atom closed atom code atom command +atom compact atom compat_rel atom compile atom compressed @@ -165,6 +166,7 @@ atom current_location atom current_stacktrace atom data atom debug_flags +atom decimals atom delay_trap atom dexit atom depth @@ -480,6 +482,7 @@ atom scheduler atom scheduler_id atom schedulers_online atom scheme +atom scientific atom scope atom sensitive atom sequential_tracer -- cgit v1.2.3