Returns the number of malloc() allocations.
Only available if ruby was built with CALC_EXACT_MALLOC_SIZE
.
Returns the Base64-encoded version of bin
. This method complies with RFC 4648. No line feeds are added.
Returns the Base64-decoded version of str
. This method complies with RFC 4648. ArgumentError
is raised if str
is incorrectly padded or contains non-alphabet characters. Note that CR or LF are also rejected.
Returns an array of the string keyword name for method mid
; the argument may be a string or a symbol:
FileUtils.options_of(:rm) # => ["force", "noop", "verbose"] FileUtils.options_of('mv') # => ["force", "noop", "verbose", "secure"]
Takes a hash as its argument. The key is a symbol or an array of symbols. These symbols correspond to method names, instance variable names, or constant names (see def_delegator
). The value is the accessor to which the methods will be delegated.
Tests for the presence of a --with-
config or --without-
config option. Returns true
if the with option is given, false
if the without option is given, and the default value otherwise.
This can be useful for adding custom definitions, such as debug information.
Example:
if with_config("debug") $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG" end
Tests for the presence of an --enable-
config or --disable-
config option. Returns true
if the enable option is given, false
if the disable option is given, and the default value otherwise.
This can be useful for adding custom definitions, such as debug information.
Example:
if enable_config("debug") $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG" end
Sets a target
name that the user can then use to configure various “with” options with on the command line by using that name. For example, if the target is set to “foo”, then the user could use the --with-foo-dir=prefix
, --with-foo-include=dir
and --with-foo-lib=dir
command line options to tell where to search for header/library files.
You may pass along additional parameters to specify default values. If one is given it is taken as default prefix
, and if two are given they are taken as “include” and “lib” defaults in that order.
In any case, the return value will be an array of determined “include” and “lib” directories, either of which can be nil if no corresponding command line option is given when no default value is specified.
Note that dir_config
only adds to the list of places to search for libraries and include files. It does not link the libraries into your application.
Returns compile/link information about an installed library in a tuple of [cflags, ldflags, libs]
, by using the command found first in the following commands:
If --with-{pkg}-config={command}
is given via command line option: {command} {options}
{pkg}-config {options}
pkg-config {options} {pkg}
Where options
is the option name without dashes, for instance "cflags"
for the --cflags
flag.
The values obtained are appended to $INCFLAGS
, $CFLAGS
, $LDFLAGS
and $libs
.
If one or more options
argument is given, the config command is invoked with the options and a stripped output string is returned without modifying any of the global values mentioned above.
The path to standard location of the user’s configuration directory.
The path to standard location of the user’s .gemrc file.
Returns the status of the last executed child process in the current thread.
Process.wait Process.spawn("ruby", "-e", "exit 13") Process.last_status #=> #<Process::Status: pid 4825 exit 13>
If no child process has ever been executed in the current thread, this returns nil
.
Process.last_status #=> nil
Get the names of all sections in the current configuration.
Returns help context.
tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Workbooks') method = WIN32OLE_METHOD.new(tobj, 'Add') puts method.helpcontext # => 65717
Returns helpcontext. If helpcontext is not found, then returns nil.
tobj = WIN32OLE_TYPE.new('Microsoft Excel 9.0 Object Library', 'Worksheet') puts tobj.helpfile # => 131185
Sends a OPTIONS request to the path
and gets a response, as an HTTPResponse
object.