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authorSerge Aleynikov <[email protected]>2013-01-21 15:36:43 +0100
committerBjörn-Egil Dahlberg <[email protected]>2013-01-21 15:36:43 +0100
commitab27e8699ef2a2bafe574158200993f184de3dc2 (patch)
treea4365e182109d25ce049244b220844705b7d2a25 /lib/stdlib/src/erl_internal.erl
parent9f461fbaf0be7aba7c0b8b89be1f0b6f1141b7a5 (diff)
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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`.
Diffstat (limited to 'lib/stdlib/src/erl_internal.erl')
-rw-r--r--lib/stdlib/src/erl_internal.erl1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/stdlib/src/erl_internal.erl b/lib/stdlib/src/erl_internal.erl
index 3063881890..bf2fffbd97 100644
--- a/lib/stdlib/src/erl_internal.erl
+++ b/lib/stdlib/src/erl_internal.erl
@@ -278,6 +278,7 @@ bif(exit, 1) -> true;
bif(exit, 2) -> true;
bif(float, 1) -> true;
bif(float_to_list, 1) -> true;
+bif(float_to_list, 2) -> true;
bif(garbage_collect, 0) -> true;
bif(garbage_collect, 1) -> true;
bif(get, 0) -> true;