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| author | Raimo Niskanen <[email protected]> | 2011-03-11 09:52:03 +0100 |
|---|---|---|
| committer | Raimo Niskanen <[email protected]> | 2011-03-11 09:52:03 +0100 |
| commit | 7c77ebba4f3905dbbd8db5898ffcaf265286f5d8 (patch) | |
| tree | 643dd823315ce1f91d5aa5b33601e3cdee88be2e /lib/stdlib/doc/src/io.xml | |
| parent | df454656f37296a47834ba8b01ec54f3638addba (diff) | |
| parent | d16aa7f83af727f5495dd4883efb603dc8b941bb (diff) | |
| download | otp-7c77ebba4f3905dbbd8db5898ffcaf265286f5d8.tar.gz otp-7c77ebba4f3905dbbd8db5898ffcaf265286f5d8.tar.bz2 otp-7c77ebba4f3905dbbd8db5898ffcaf265286f5d8.zip | |
Merge branch 'ay/precisionfix/OTP-8989' into dev
* ay/precisionfix/OTP-8989:
Fix ~F.Fs bug, add testcase and improve documentation
io_lib_format string precision fix
Diffstat (limited to 'lib/stdlib/doc/src/io.xml')
| -rw-r--r-- | lib/stdlib/doc/src/io.xml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/stdlib/doc/src/io.xml b/lib/stdlib/doc/src/io.xml index efbb1fc078..81fb5cad3d 100644 --- a/lib/stdlib/doc/src/io.xml +++ b/lib/stdlib/doc/src/io.xml @@ -464,9 +464,9 @@ ok</pre> <p>Prints the argument with the <c>string</c> syntax. The argument is, if no Unicode translation modifier is present, an <seealso marker="erts:erlang#iolist_definition">I/O list</seealso>, a binary, or an atom. If the Unicode translation modifier ('t') is in effect, the argument is chardata(), meaning that binaries are in UTF-8. The characters - are printed without quotes. In this format, the printed - argument is truncated to the given precision and field - width.</p> + are printed without quotes. The string is first truncated + by the given precision and then padded and justified + to the given field width. The default precision is the field width.</p> <p>This format can be used for printing any object and truncating the output so it fits a specified field:</p> <pre> @@ -475,6 +475,8 @@ ok</pre> ok 4> <input>io:fwrite("|~10s|~n", [io_lib:write({hey, hey, hey})]).</input> |{hey,hey,h| +5> <input>io:fwrite("|~-10.8s|~n", [io_lib:write({hey, hey, hey})]).</input> +|{hey,hey | ok</pre> <p>A list with integers larger than 255 is considered an error if the Unicode translation modifier is not given:</p> <pre> |