golden hour

/usr/include

File/Folder	Size	Actions
FlexLexer.h	6.07 KB
GL	-
KF5	-
X11	-
_G_config.h	1.26 KB
a.out.h	4.25 KB
aio.h	7.27 KB
aliases.h	2 KB
alloca.h	1.19 KB
apache2	-
ar.h	1.68 KB
argp.h	24.75 KB
argz.h	6.96 KB
arpa	-
asm	-
asm-generic	-
assert.h	3.52 KB
autosprintf.h	2.33 KB
bind9	-
bits	-
bsock	-
byteswap.h	1.41 KB
c++	-
com_err.h	2.07 KB
complex.h	3.62 KB
cpio.h	2.21 KB
cpufreq.h	5.8 KB
criu	-
crypt.h	2.22 KB
ctype.h	11.52 KB
curses.h	93.19 KB
cursesapp.h	6.62 KB
cursesf.h	27.05 KB
cursesm.h	19.09 KB
cursesp.h	8.3 KB
cursesw.h	48.24 KB
cursslk.h	7.13 KB
db.h	120.21 KB
db4.7.25	-
db_185.h	5.84 KB
dbm.h	1.37 KB
dirent.h	12.34 KB
dlfcn.h	6.88 KB
drm	-
e2p	-
elf.h	141.01 KB
endian.h	2.95 KB
entities.h	4.56 KB
envz.h	2.82 KB
err.h	2.18 KB
errno.h	2.33 KB
error.h	2.01 KB
et	-
eti.h	2.82 KB
etip.h	9.04 KB
execinfo.h	1.5 KB
expat.h	41.04 KB
expat_external.h	3.29 KB
ext2fs	-
fcntl.h	9.89 KB
features.h	12.87 KB
fenv.h	4.5 KB
fmtmsg.h	3.18 KB
fnmatch.h	2.27 KB
fontconfig	-
form.h	17.56 KB
fpu_control.h	3.5 KB
freetype2	-
fstab.h	3.04 KB
fts.h	5.17 KB
ftw.h	5.15 KB
gconv.h	5.16 KB
gcrypt-module.h	7.18 KB
gcrypt.h	76.51 KB
gd.h	32.02 KB
gd_io.h	1.13 KB
gdbm	-
gdbm.h	5.75 KB
gdcache.h	2.75 KB
gdfontg.h	623 B
gdfontl.h	621 B
gdfontmb.h	590 B
gdfonts.h	585 B
gdfontt.h	617 B
gdfx.h	2.34 KB
gelf.h	11.05 KB
getopt.h	6.53 KB
gettext-po.h	15.17 KB
glob.h	6.51 KB
gnu	-
gnu-versions.h	2.29 KB
google	-
gpg-error.h	23.66 KB
grp.h	6.75 KB
gshadow.h	4.43 KB
gssapi	-
gssapi.h	181 B
gssrpc	-
iconv.h	1.83 KB
idn-free.h	2.41 KB
idn-int.h	20 B
idna.h	3.48 KB
ieee754.h	4.81 KB
ifaddrs.h	2.77 KB
inttypes.h	11.61 KB
jconfig.h	1.7 KB
jerror.h	14.4 KB
jmorecfg.h	13.5 KB
jpeglib.h	49.12 KB
kadm5	-
kdb.h	60.12 KB
kde4	-
keyutils.h	7.08 KB
krad.h	8.72 KB
krb5	-
krb5.h	402 B
langinfo.h	15.57 KB
lastlog.h	126 B
lauxlib.h	5.64 KB
lber.h	14.95 KB
lber_types.h	1.43 KB
ldap.h	63.46 KB
ldap_cdefs.h	9.24 KB
ldap_features.h	1.77 KB
ldap_schema.h	9.23 KB
ldap_utf8.h	3.39 KB
ldif.h	4.58 KB
libaio.h	7.8 KB
libdb	-
libelf.h	19.11 KB
libexslt	-
libgen.h	1.37 KB
libintl.h	4.49 KB
libio.h	16.87 KB
libltdl	-
libpng15	-
libxml2	-
libxslt	-
limits.h	4.42 KB
link.h	6.99 KB
linux	-
locale.h	7.78 KB
ltdl.h	5.58 KB
lua.h	11.41 KB
lua.hpp	191 B
luaconf.h	21.64 KB
lualib.h	1 KB
lzma	-
lzma.h	9.51 KB
malloc.h	6.44 KB
math.h	15.7 KB
mcheck.h	2.4 KB
memory.h	962 B
menu.h	11.67 KB
misc	-
mntent.h	3.3 KB
monetary.h	1.73 KB
mqueue.h	3.7 KB
mtd	-
mysql	-
nc_tparm.h	4.05 KB
ncurses	-
ncurses.h	93.19 KB
ncurses_dll.h	3.83 KB
ncursesw	-
ndbm.h	2.39 KB
net	-
netash	-
netatalk	-
netax25	-
netdb.h	27.46 KB
neteconet	-
netinet	-
netipx	-
netiucv	-
netpacket	-
netrom	-
netrose	-
nfs	-
nl_types.h	1.73 KB
nlist.h	1.56 KB
nss.h	1.85 KB
obstack.h	18.84 KB
openssl	-
panel.h	3.97 KB
paths.h	2.91 KB
pcre.h	29.73 KB
pcre_scanner.h	6.45 KB
pcre_stringpiece.h	6.11 KB
pcrecpp.h	25.91 KB
pcrecpparg.h	6.62 KB
pcreposix.h	5.32 KB
png.h	113.36 KB
pngconf.h	20.94 KB
pnglibconf.h	6.3 KB
poll.h	22 B
pr29.h	2.07 KB
printf.h	6.56 KB
profile.h	11.87 KB
protobuf-c	-
protocols	-
pthread.h	39.95 KB
pty.h	1.51 KB
punycode.h	9.36 KB
pwd.h	5.87 KB
python2.7	-
python3.6m	-
quota	-
rdma	-
re_comp.h	957 B
regex.h	21.58 KB
regexp.h	6.89 KB
resolv.h	14.67 KB
rpc	-
rpcsvc	-
sasl	-
sched.h	4.55 KB
scsi	-
search.h	5.11 KB
security	-
selinux	-
semaphore.h	2.36 KB
sepol	-
setjmp.h	3.97 KB
sgtty.h	1.33 KB
shadow.h	5.1 KB
signal.h	13.3 KB
slapi-plugin.h	37.45 KB
sound	-
spawn.h	6.53 KB
stab.h	264 B
stdc-predef.h	1.59 KB
stdint.h	7.94 KB
stdio.h	30.9 KB
stdio_ext.h	2.74 KB
stdlib.h	33.23 KB
string.h	21.75 KB
stringprep.h	8 KB
strings.h	4.55 KB
sys	-
syscall.h	25 B
sysexits.h	5.11 KB
syslog.h	24 B
tar.h	3.67 KB
tcpd.h	11.48 KB
term.h	38.63 KB
term_entry.h	7.91 KB
termcap.h	3.4 KB
termio.h	214 B
termios.h	3.52 KB
tgmath.h	18.11 KB
thread_db.h	15.65 KB
tic.h	12.35 KB
tiff.h	34.95 KB
tiffconf-64.h	3.35 KB
tiffconf.h	250 B
tiffio.h	22.52 KB
tiffio.hxx	1.66 KB
tiffvers.h	410 B
time.h	13.4 KB
tld.h	4.54 KB
ttyent.h	2.44 KB
uapi	-
uchar.h	2.42 KB
ucontext.h	1.92 KB
ulimit.h	1.55 KB
unctrl.h	3.03 KB
unistd.h	41.78 KB
ustat.h	23 B
utime.h	1.5 KB
utmp.h	3.16 KB
utmpx.h	4.02 KB
uuid	-
values.h	1.92 KB
verto-module.h	6.48 KB
verto.h	18.57 KB
video	-
wait.h	22 B
wchar.h	31.37 KB
wctype.h	10.89 KB
wordexp.h	2.47 KB
xcb	-
xen	-
xlocale.h	1.66 KB
zconf.h	14.92 KB
zlib.h	84.68 KB

Edit: wctype.h

/* Copyright (C) 1996-2002,2005,2007-2009,2010,2012 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/*
 *	ISO C99 Standard: 7.25
 *	Wide character classification and mapping utilities  <wctype.h>
 */

#ifndef _WCTYPE_H

#include <features.h>
#include <bits/types.h>

#ifndef __need_iswxxx
# define _WCTYPE_H	1

/* Get wint_t from <wchar.h>.  */
# define __need_wint_t
# include <wchar.h>

/* Constant expression of type `wint_t' whose value does not correspond
   to any member of the extended character set.  */
# ifndef WEOF
#  define WEOF (0xffffffffu)
# endif
#endif
#undef __need_iswxxx

/* The following part is also used in the <wcsmbs.h> header when compiled
   in the Unix98 compatibility mode.  */
#ifndef __iswxxx_defined
# define __iswxxx_defined	1

__BEGIN_NAMESPACE_C99
/* Scalar type that can hold values which represent locale-specific
   character classifications.  */
typedef unsigned long int wctype_t;
__END_NAMESPACE_C99

# ifndef _ISwbit
/* The characteristics are stored always in network byte order (big
   endian).  We define the bit value interpretations here dependent on the
   machine's byte order.  */

#  include <endian.h>
#  if __BYTE_ORDER == __BIG_ENDIAN
#   define _ISwbit(bit)	(1 << (bit))
#  else /* __BYTE_ORDER == __LITTLE_ENDIAN */
#   define _ISwbit(bit)	\
	((bit) < 8 ? (int) ((1UL << (bit)) << 24)			      \
	 : ((bit) < 16 ? (int) ((1UL << (bit)) << 8)			      \
	    : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8)			      \
	       : (int) ((1UL << (bit)) >> 24))))
#  endif

enum
{
  __ISwupper = 0,			/* UPPERCASE.  */
  __ISwlower = 1,			/* lowercase.  */
  __ISwalpha = 2,			/* Alphabetic.  */
  __ISwdigit = 3,			/* Numeric.  */
  __ISwxdigit = 4,			/* Hexadecimal numeric.  */
  __ISwspace = 5,			/* Whitespace.  */
  __ISwprint = 6,			/* Printing.  */
  __ISwgraph = 7,			/* Graphical.  */
  __ISwblank = 8,			/* Blank (usually SPC and TAB).  */
  __ISwcntrl = 9,			/* Control character.  */
  __ISwpunct = 10,			/* Punctuation.  */
  __ISwalnum = 11,			/* Alphanumeric.  */

_ISwupper = _ISwbit (__ISwupper),	/* UPPERCASE.  */
  _ISwlower = _ISwbit (__ISwlower),	/* lowercase.  */
  _ISwalpha = _ISwbit (__ISwalpha),	/* Alphabetic.  */
  _ISwdigit = _ISwbit (__ISwdigit),	/* Numeric.  */
  _ISwxdigit = _ISwbit (__ISwxdigit),	/* Hexadecimal numeric.  */
  _ISwspace = _ISwbit (__ISwspace),	/* Whitespace.  */
  _ISwprint = _ISwbit (__ISwprint),	/* Printing.  */
  _ISwgraph = _ISwbit (__ISwgraph),	/* Graphical.  */
  _ISwblank = _ISwbit (__ISwblank),	/* Blank (usually SPC and TAB).  */
  _ISwcntrl = _ISwbit (__ISwcntrl),	/* Control character.  */
  _ISwpunct = _ISwbit (__ISwpunct),	/* Punctuation.  */
  _ISwalnum = _ISwbit (__ISwalnum)	/* Alphanumeric.  */
};
# endif /* Not _ISwbit  */

__BEGIN_DECLS

__BEGIN_NAMESPACE_C99
/*
 * Wide-character classification functions: 7.15.2.1.
 */

/* Test for any wide character for which `iswalpha' or `iswdigit' is
   true.  */
extern int iswalnum (wint_t __wc) __THROW;

/* Test for any wide character for which `iswupper' or 'iswlower' is
   true, or any wide character that is one of a locale-specific set of
   wide-characters for which none of `iswcntrl', `iswdigit',
   `iswpunct', or `iswspace' is true.  */
extern int iswalpha (wint_t __wc) __THROW;

/* Test for any control wide character.  */
extern int iswcntrl (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to a decimal-digit
   character.  */
extern int iswdigit (wint_t __wc) __THROW;

/* Test for any wide character for which `iswprint' is true and
   `iswspace' is false.  */
extern int iswgraph (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to a lowercase letter
   or is one of a locale-specific set of wide characters for which
   none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
extern int iswlower (wint_t __wc) __THROW;

/* Test for any printing wide character.  */
extern int iswprint (wint_t __wc) __THROW;

/* Test for any printing wide character that is one of a
   locale-specific et of wide characters for which neither `iswspace'
   nor `iswalnum' is true.  */
extern int iswpunct (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to a locale-specific
   set of wide characters for which none of `iswalnum', `iswgraph', or
   `iswpunct' is true.  */
extern int iswspace (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to an uppercase letter
   or is one of a locale-specific set of wide character for which none
   of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true.  */
extern int iswupper (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to a hexadecimal-digit
   character equivalent to that performed be the functions described
   in the previous subclause.  */
extern int iswxdigit (wint_t __wc) __THROW;

/* Test for any wide character that corresponds to a standard blank
   wide character or a locale-specific set of wide characters for
   which `iswalnum' is false.  */
# ifdef __USE_ISOC99
extern int iswblank (wint_t __wc) __THROW;
# endif

/*
 * Extensible wide-character classification functions: 7.15.2.2.
 */

/* Construct value that describes a class of wide characters identified
   by the string argument PROPERTY.  */
extern wctype_t wctype (const char *__property) __THROW;

/* Determine whether the wide-character WC has the property described by
   DESC.  */
extern int iswctype (wint_t __wc, wctype_t __desc) __THROW;
__END_NAMESPACE_C99

/*
 * Wide-character case-mapping functions: 7.15.3.1.
 */

__BEGIN_NAMESPACE_C99
/* Scalar type that can hold values which represent locale-specific
   character mappings.  */
typedef const __int32_t *wctrans_t;
__END_NAMESPACE_C99
#ifdef __USE_GNU
__USING_NAMESPACE_C99(wctrans_t)
#endif

__BEGIN_NAMESPACE_C99
/* Converts an uppercase letter to the corresponding lowercase letter.  */
extern wint_t towlower (wint_t __wc) __THROW;

/* Converts an lowercase letter to the corresponding uppercase letter.  */
extern wint_t towupper (wint_t __wc) __THROW;
__END_NAMESPACE_C99

__END_DECLS

#endif	/* need iswxxx.  */

/* The remaining definitions and declarations must not appear in the
   <wchar.h> header.  */
#ifdef _WCTYPE_H

/*
 * Extensible wide-character mapping functions: 7.15.3.2.
 */

__BEGIN_DECLS

__BEGIN_NAMESPACE_C99
/* Construct value that describes a mapping between wide characters
   identified by the string argument PROPERTY.  */
extern wctrans_t wctrans (const char *__property) __THROW;

/* Map the wide character WC using the mapping described by DESC.  */
extern wint_t towctrans (wint_t __wc, wctrans_t __desc) __THROW;
__END_NAMESPACE_C99

# ifdef __USE_XOPEN2K8
/* Declare the interface to extended locale model.  */
#  include <xlocale.h>

/* Test for any wide character for which `iswalpha' or `iswdigit' is
   true.  */
extern int iswalnum_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any control wide character.  */
extern int iswcntrl_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any wide character that corresponds to a decimal-digit
   character.  */
extern int iswdigit_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any wide character for which `iswprint' is true and
   `iswspace' is false.  */
extern int iswgraph_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any printing wide character.  */
extern int iswprint_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any printing wide character that is one of a
   locale-specific et of wide characters for which neither `iswspace'
   nor `iswalnum' is true.  */
extern int iswpunct_l (wint_t __wc, __locale_t __locale) __THROW;

/* Test for any wide character that corresponds to a standard blank
   wide character or a locale-specific set of wide characters for
   which `iswalnum' is false.  */
extern int iswblank_l (wint_t __wc, __locale_t __locale) __THROW;

/* Construct value that describes a class of wide characters identified
   by the string argument PROPERTY.  */
extern wctype_t wctype_l (const char *__property, __locale_t __locale)
     __THROW;

/* Determine whether the wide-character WC has the property described by
   DESC.  */
extern int iswctype_l (wint_t __wc, wctype_t __desc, __locale_t __locale)
     __THROW;

/*
 * Wide-character case-mapping functions.
 */

/* Converts an uppercase letter to the corresponding lowercase letter.  */
extern wint_t towlower_l (wint_t __wc, __locale_t __locale) __THROW;

/* Converts an lowercase letter to the corresponding uppercase letter.  */
extern wint_t towupper_l (wint_t __wc, __locale_t __locale) __THROW;

/* Construct value that describes a mapping between wide characters
   identified by the string argument PROPERTY.  */
extern wctrans_t wctrans_l (const char *__property, __locale_t __locale)
     __THROW;

/* Map the wide character WC using the mapping described by DESC.  */
extern wint_t towctrans_l (wint_t __wc, wctrans_t __desc,
			   __locale_t __locale) __THROW;

# endif /* Use POSIX 2008.  */

__END_DECLS

#endif	/* __WCTYPE_H defined.  */

#endif /* wctype.h  */