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2013-08-22add strftime and wcsftime field widthsRich Felker-21/+49
at present, since POSIX requires %F to behave as %+4Y-%m-%d and ISO C requires %F to behave as %Y-%m-%d, the default behavior for %Y has been changed to match %+4Y. this seems to be the only way to conform to the requirements of both standards, and it does not affect years prior to the year 10000. depending on the outcome of interpretations from the standards bodies, this may be adjusted at some point.
2013-08-02add wcsftime_t aliasRich Felker-0/+3
this is a nonstandard extension.
2013-07-28fix semantically incorrect use of LC_GLOBAL_LOCALERich Felker-1/+1
LC_GLOBAL_LOCALE refers to the global locale, controlled by setlocale, not the thread-local locale in effect which these functions should be using. neither LC_GLOBAL_LOCALE nor 0 has an argument to the *_l functions has behavior defined by the standard, but 0 is a more logical choice for requesting the callee to lookup the current locale. in the future I may move the current locale lookup the the caller (the non-_l-suffixed wrapper). at this point, all of the locale logic is dummied out, so no harm was done, but it should at least avoid misleading usage.
2013-07-24add __wcsftime_l symbolRich Felker-3/+9
unlike the strftime commit, this one is purely an ABI compatibility issue. the previous version of the code would have worked just as well with LC_TIME once LC_TIME support is added.
2012-09-06use restrict everywhere it's required by c99 and/or posix 2008Rich Felker-1/+1
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
2012-02-28implement wcsftime functionRich Felker-0/+32