diff options
| author | Eric Blake <ebb9@byu.net> | 2007-07-09 12:54:26 +0000 |
|---|---|---|
| committer | Eric Blake <ebb9@byu.net> | 2007-09-21 15:49:04 -0600 |
| commit | 17b0fe1e6e2ba0634ad55a169a83d9eed9a182ed (patch) | |
| tree | 96e065b9c4b047fb54767968830b1876ccc129e8 /NEWS | |
| parent | 19a9b8eb8b199a561ed7637b9b2d1a3118bb35e3 (diff) | |
| download | m4-17b0fe1e6e2ba0634ad55a169a83d9eed9a182ed.tar.gz | |
Avoid undefined behavior of %.*c in printf.
* src/format.c (format): Special case %c.
* TODO: Document that more remains to be done.
* NEWS: Document the fix.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -5,6 +5,11 @@ Foundation, Inc. Version 1.4.10 - ?? ??? 2007, by ???? (CVS version 1.4.9c) * Upgrade from GPL version 2 to GPL version 3 or later. +* A number of portability improvements inherited from gnulib. +* Avoid undefined behavior introduced in 1.4.9b in the `format' builtin + when handling %c. However, this area of code has never been documented, + and currently does not match the POSIX behavior of printf(1), so it may + have further changes in the next version. Version 1.4.9b - 29 May 2007, by Eric Blake (CVS version 1.4.9a) @@ -19,7 +24,9 @@ Version 1.4.9b - 29 May 2007, by Eric Blake (CVS version 1.4.9a) more predictably when stdin is seekable. * The `format' builtin now understands formats such as %a, %A, and %'hhd, and works around a number of platform printf bugs. Furthermore, the - sequence format(%*.*d,-1,-1,1) no longer outputs random data. + sequence format(%*.*d,-1,-1,1) no longer outputs random data. However, + some non-compliant platforms such as mingw still have known bugs in + strtod that may cause testsuite failures. * The testsuite is improved to also run gnulib portability tests for the features that M4 imports from gnulib. |