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| author | Anthony Ramine <[email protected]> | 2014-05-20 22:01:19 +0200 |
|---|---|---|
| committer | Anthony Ramine <[email protected]> | 2014-05-20 22:01:19 +0200 |
| commit | a10a7979887403ea61c30155cef18aa7324420a6 (patch) | |
| tree | 98809c4a3550c82f2685053edf892e8d1be473ce /lib/stdlib/test | |
| parent | e7e750a40ff875e6d62f1e7904470222ac8de269 (diff) | |
| download | otp-a10a7979887403ea61c30155cef18aa7324420a6.tar.gz otp-a10a7979887403ea61c30155cef18aa7324420a6.tar.bz2 otp-a10a7979887403ea61c30155cef18aa7324420a6.zip | |
Properly handle fields too short in io_lib_format
Values for which the precision or field width were too small in io_lib_format
could trigger an infinite loop or crash in term/5.
Reported-by: Richard Carlsson
Diffstat (limited to 'lib/stdlib/test')
| -rw-r--r-- | lib/stdlib/test/io_SUITE.erl | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/stdlib/test/io_SUITE.erl b/lib/stdlib/test/io_SUITE.erl index 5a8971c071..3a76275f31 100644 --- a/lib/stdlib/test/io_SUITE.erl +++ b/lib/stdlib/test/io_SUITE.erl @@ -30,7 +30,7 @@ io_fread_newlines/1, otp_8989/1, io_lib_fread_literal/1, printable_range/1, io_lib_print_binary_depth_one/1, otp_10302/1, otp_10755/1, - otp_10836/1]). + otp_10836/1, io_lib_width_too_small/1]). -export([pretty/2]). @@ -69,7 +69,8 @@ all() -> io_lib_collect_line_3_wb, cr_whitespace_in_string, io_fread_newlines, otp_8989, io_lib_fread_literal, printable_range, - io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836]. + io_lib_print_binary_depth_one, otp_10302, otp_10755, otp_10836, + io_lib_width_too_small]. groups() -> []. @@ -2213,3 +2214,8 @@ compile_file(File, Text, Config) -> try compile:file(Fname, [return]) after ok %file:delete(Fname) end. + +io_lib_width_too_small(Config) -> + "**" = lists:flatten(io_lib:format("~2.3w", [3.14])), + "**" = lists:flatten(io_lib:format("~2.5w", [3.14])), + ok. |