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2012-03-20limits.h: support gcc's -funsigned-charRich Felker1-2/+10
some software apparently uses this and breaks with musl due to mismatching definitions...
2012-03-17move nonstandard gamma() etc. to _GNU_SOURCE onlyRich Felker1-4/+4
it's not even provided in the library at the moment, but could easily be provided with weak aliases if desired.
2012-03-17c++ seems to want some casts in the float representation-access macrosRich Felker1-2/+2
2012-03-15in math.h make lgamma_r and non-double bessel _GNU_SOURCE onlynsz1-20/+18
long double and float bessel functions are no longer xsi extensions
2012-03-15efficient sincos based on sin and cosnsz1-0/+4
2012-03-13first commit of the new libm!Rich Felker3-9/+354
thanks to the hard work of Szabolcs Nagy (nsz), identifying the best (from correctness and license standpoint) implementations from freebsd and openbsd and cleaning them up! musl should now fully support c99 float and long double math functions, and has near-complete complex math support. tgmath should also work (fully on gcc-compatible compilers, and mostly on any c99 compiler). based largely on commit 0376d44a890fea261506f1fc63833e7a686dca19 from nsz's libm git repo, with some additions (dummy versions of a few missing long double complex functions, etc.) by me. various cleanups still need to be made, including re-adding (if they're correct) some asm functions that were dropped.
2012-03-02fix nan/infinity macros in math.h, etc.Rich Felker1-6/+8
the previous version not only failed to work in c++, but also failed to produce constant expressions, making the macros useless as initializers for objects of static storage duration. gcc 3.3 and later have builtins for these, which sadly seem to be the most "portable" solution. the alternative definitions produce exceptions (for NAN) and compiler warnings (for INFINITY) on newer versions of gcc.
2012-03-02typo in math.h c version checkRich Felker1-1/+1
2012-03-02make math.h compatibe with c89Rich Felker1-1/+5
2012-03-01add all missing wchar functions except floating point parsersRich Felker1-0/+15
these are mostly untested and adapted directly from corresponding byte string functions and similar.
2012-03-01add memory.h, bogus legacy alias for string.hRich Felker1-0/+1
2012-02-29use c++-friendly initializers for pthread initializer definitionsRich Felker1-3/+3
these will also avoid obnoxious warnings with gcc -Wbraces.
2012-02-29add <syscall.h> as an alias for <sys/syscall.h>Rich Felker1-0/+1
apparently some broken stuff (libstdc++) needs this.
2012-02-24replace prototype for basename in string.h with non-prototype declarationRich Felker1-1/+1
GNU programs may expect the GNU version of basename, which has a different prototype (argument is const-qualified) and prototype it themselves too. of course if they're expecting the GNU behavior for the function, they'll still run into problems, but at least this eliminates some compile-time failures.
2012-02-17add get_current_dir_name functionRich Felker1-0/+1
2012-02-15add float_t and double_t to math.hRich Felker1-0/+2
2012-02-09replace bad cancellation cleanup abi with a sane oneRich Felker1-16/+9
the old abi was intended to duplicate glibc's abi at the expense of being ugly and slow, but it turns out glib was not even using that abi except on non-gcc-compatible compilers (which it doesn't even support) and was instead using an exceptions-in-c/unwind-based approach whose abi we could not duplicate anyway without nasty dwarf2/unwind integration. the new abi is copied from a very old glibc abi, which seems to still be supported/present in current glibc. it avoids all unwinding, whether by sjlj or exceptions, and merely maintains a linked list of cleanup functions to be called from the context of pthread_exit. i've made some care to ensure that longjmp out of a cleanup function should work, even though it is not required to. this change breaks abi compatibility with programs which were using pthread cancellation, which is unfortunate, but that's why i'm making the change now rather than later. considering that most pthread features have not been usable until recently anyway, i don't see it as a major issue at this point.
2012-02-07fix typo in inotify.hRich Felker1-1/+1
2012-02-07declare basename in string.h when _GNU_SOURCE is definedRich Felker1-0/+1
note that it still will have the standards-conformant behavior, not the GNU behavior. but at least this prevents broken code from ending up with truncated pointers due to implicit declarations...
2012-02-07revert hacks for types of stdint.h integer constant macrosRich Felker1-4/+4
per 7.18.4: Each invocation of one of these macros shall expand to an integer constant expression suitable for use in #if preprocessing directives. The type of the expression shall have the same type as would an expression of the corresponding type converted according to the integer promotions. The value of the expression shall be that of the argument. the key phrase is "converted according to the integer promotions". thus there is no intent or allowance that the expression have smaller-than-int types.
2012-02-06more locale_t interfaces (string stuff) and header updatesRich Felker3-0/+15
this should be everything except for some functions where the non-_l version isn't even implemented yet (mainly some non-ISO-C wcs* functions).
2012-02-06fix some omissions and mistakes in locale_t interface definitionsRich Felker1-0/+24
2012-02-06add more of the locale_t interfaces, all dummied out to ignore the localeRich Felker1-0/+5
2012-02-06add deprecated (removed from posix) [efg]cvt() functionsRich Felker1-0/+3
these have not been heavily tested, but they should work as described in the old standards. probably broken for non-finite values...
2012-02-01apparently gnu caddr_t is supposed to be char *, not unsigned longRich Felker1-1/+1
this type should never be used anyway, but some old junk uses it..
2012-02-01fix utmp.h mess, try 2Rich Felker1-1/+1
2012-01-31fix previous utmp.h junk commitRich Felker1-1/+1
2012-01-31add some missing junk in utmp.hRich Felker1-0/+4
2012-01-29add fgetpwent (nonstandard function)Rich Felker1-0/+5
based on patch by Jeremy Huntwork
2012-01-28add linux setfs[ug]id syscall wrappersRich Felker1-0/+20
patch by Jeremy Huntwork
2012-01-26remove useless "extern" keywords in headersRich Felker3-3/+3
2012-01-25fix typo in FPE_FLTUND definition, signal.hRich Felker1-1/+1
2012-01-24add MIN/MAX macros to sys/param.hRich Felker1-0/+5
this is a nonstandard junk header anyway, so just do what apps expect..
2012-01-24add legacy futimes and lutimes functionsRich Felker1-0/+2
based on patch by sh4rm4. these functions are deprecated; futimens and utimensat should be used instead in new programs.
2012-01-20add prlimit syscall wrapperRich Felker1-0/+8
2011-11-10fix __cplusplus extern "C" closing brace in pty.h (typo?)Rich Felker1-1/+1
2011-11-10fix all missing instances of __cplusplus checks/extern "C" in headersRich Felker21-1/+166
patch by Arvid Picciani (aep)
2011-10-17add some missing GNU FNM_* extensions to the headerRich Felker1-1/+3
note that none of these are implemented, and programs depending on them may break... patch by sh4rm4
2011-10-17fix some details in ugly stuff that doesn't belong in libcRich Felker1-0/+2
patches by sh4rm4, presumably needed to make gdb or some similar junk happy...
2011-10-04make [U]INTn_C() macros have the right type...Rich Felker1-4/+4
...and still be valid in #if directives.
2011-09-28stupid typo (caused by rather ugly spelling in POSIX..) in aioRich Felker1-1/+1
2011-09-26fix ctype macros to cast argument to (unsigned) firstRich Felker2-7/+7
issue reported by nsz, but it's actually not just pedantic. the functions can take input of any arithmetic type, including floating point, and the behavior needs to be as if the conversion implicit in the function call took place.
2011-09-26cleanup various minor issues reported by nszRich Felker2-2/+1
the changes to syscall_ret are mostly no-ops in the generated code, just cleanup of type issues and removal of some implementation-defined behavior. the one exception is the change in the comparison value, which is fixed so that 0xf...f000 (which in principle could be a valid return value for mmap, although probably never in reality) is not treated as an error return.
2011-09-23FD_ISSET must return an int. this is the easiest way.Rich Felker1-1/+1
casting to int would not be correct because high bits could be lost. mapping the high bits down onto low bits would be costlier in the common case where the result is just used in a conditional. changing the type of the bit array elements to int would permute the order of the bit array on 64-bit big endian systems, so that's not an option either.
2011-09-23sys/user.h may need stdint.hRich Felker1-0/+1
2011-09-21fix missing SIG_DFL, SIG_IGN, SIG_ERR without posix in signal.hRich Felker1-5/+6
2011-09-21gnu search.h has struct qelem...Rich Felker1-0/+7
2011-09-20fix some header typosRich Felker2-2/+2
2011-09-20make stdbool.h conform to c99Rich Felker1-1/+2
2011-09-20fix incorrect include guard in mqueue.hRich Felker1-2/+2
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