Utilizing the popular Version 2 gearbox design, it features a full metal gearbox, high durability gears, a powerful M spring and a high torque motor for one of the highest performance abilities of JG's entire line. All Rights Reserved.
Built with Volusion. Must Have Items. Extra Magazines. Staff Answer: This airsoft gun does not come with a battery or charger. My gun came damaged wires ripped days ago Kaleb B 0. Staff Answer: Please contact our customer service and they will assist you. Staff Answer: Should be small days ago 0.
Might be very tight fit, be careful not to pinch the cables. Is it near the buffer tube or where days ago WIlliam R 0. Staff Answer: Just wanting to know if this gun comes with battery and charger days ago Charlie D 0.
Staff Answer: It does not come with a battery or charger days ago 0. Your Question:. Detailed Explanation:. Airsoft GI G4 Airsoft. AIM Sports 1. VISM Gen. Airsoft GI Field Partners. Customer Service: 1. All Airsoft Rifles. Lancer Tactical AEGs.
Arcturus AEG. Lancer Tactical Gen 2. Elite Force AEGs. Apex AEG. Krytac Airsoft AEGs. Cyma AEG. Double Bell AEG. Valken AEG. JG AEG. King Arms AEG. Other Brands AEG. G New Player Package. Electric Sniper Rifle. Best Airsoft Starter Packages. Gas Airsoft Pistols. Spring Airsoft Pistols. Electric Airsoft Pistols. Airsoft Revolvers. Hi-Capa Airsoft Pistols. Airsoft Electric Sniper Rifles.
Airsoft Gas Sniper Rifles. Airsoft Spring Sniper Rifle. Gas Operated Shotguns. Spring Shotguns for Airsoft. Glock Airsoft. Hi Capa. M4 Rifles. Unfortunately, both examples shown here share some subtle bugs.
See if you can find and correct them; or see Answers. Invocations of m4wrap at the same recursion level are concatenated and rescanned as usual:. Both macros cause the file named file to be read by m4. When the end of the file is reached, input is resumed from the previous input file. The expansion of include and sinclude is therefore the contents of file. If file does not exist, is a directory, or cannot otherwise be read, the expansion is void, and include will fail with an error while sinclude is silent.
The empty string counts as a file that does not exist. The rest of this section assumes that m4 is invoked with the -I option see Invoking m4 pointing to the m The file m Normally file inclusion is used to insert the contents of a file into the input stream. The contents of the file will be read by m4 and macro calls in the file will be expanded:.
The fact that include and sinclude expand to the contents of the file can be used to define macros that operate on entire files. This use of include is not trivial, though, as files can contain quotes, commas, and parentheses, which can interfere with the way the m4 parser works.
GNU m4 seamlessly concatenates the file contents with the next character, even if the included file ended in the middle of a comment, string, or macro call. These conditions are only treated as end of file errors if specified as input files on the command line.
In GNU m4 , an alternative method of reading files is using undivert see Undivert on a named file. GNU m4 allows included files to be found in other directories than the current working directory. If the --prepend-include or -B command-line option was provided see Invoking m4 , those directories are searched first, in reverse order that those options were listed on the command line.
Then m4 looks in the current working directory. Next comes the directories specified with the --include or -I option, in the order found on the command line. Finally, if the M4PATH environment variable is set, it is expected to contain a colon-separated list of directories, which will be searched in order. Diversions are a way of temporarily saving output. The output of m4 can at any time be diverted to a temporary file, and be reinserted into the output stream, undiverted , again at a later time.
Numbered diversions are counted from 0 upwards, diversion number 0 being the normal output stream. GNU m4 tries to keep diversions in memory.
However, there is a limit to the overall memory usable by all diversions taken together K, currently. When this maximum is about to be exceeded, a temporary file is opened to receive the contents of the biggest diversion still in memory, freeing this memory for other diversions. Thus, the amount of available disk space provides the only real limit on the number and aggregate size of diversions. Diversions make it possible to generate output in a different order than the input was read.
It is possible to implement topological sorting dependencies. The current diversion is changed to number. If number is left out or empty, it is assumed to be zero. If number cannot be parsed, the diversion is unchanged. When all the m4 input will have been processed, all existing diversions are automatically undiverted, in numerical order. Several calls of divert with the same argument do not overwrite the previous diverted text, but append to it.
Diversions are printed after any wrapped text is expanded. If output is diverted to a negative diversion, it is simply discarded. This can be used to suppress unwanted output. A common example of unwanted output is the trailing newlines after macro definitions. Here is a common programming idiom in m4 for avoiding them.
Traditional implementations only supported ten diversions. But as a GNU extension, diversion numbers can be as large as positive integers will allow, rather than treating a multi-digit diversion number as a request to discard text. Note that divert is an English word, but also an active macro without arguments. When processing plain text, the word might appear in normal text and be unintentionally swallowed as a macro invocation. One way to avoid this is to use the -P option to rename all builtins see Invoking m4.
Another is to write a wrapper that requires a parameter to be recognized. Undiverts the numeric diversions given by the arguments, in the order given. If no arguments are supplied, all diversions are undiverted, in numerical order. As a GNU extension, diversions may contain non-numeric strings, which are treated as the names of files to copy into the output without expansion. A warning is issued if a file could not be opened. Notice the last two blank lines. One of them comes from the newline following undivert , the other from the newline that followed the divert!
A diversion often starts with a blank line like this. When diverted text is undiverted, it is not reread by m4 , but rather copied directly to the current output, and it is therefore not an error to undivert into a diversion. Undiverting the empty string is the same as specifying diversion 0; in either case nothing happens since the output has already been flushed.
When a diversion has been undiverted, the diverted text is discarded, and it is not possible to bring back diverted text more than once. Attempts to undivert the current diversion are silently ignored.
Thus, when the current diversion is not 0, the current diversion does not get rearranged among the other diversions. GNU m4 allows named files to be undiverted. Given a non-numeric argument, the contents of the file named will be copied, uninterpreted, to the current output.
This complements the builtin include see Include. To illustrate the difference, assume the file foo contains:. If the file is not found or cannot be read , an error message is issued, and the expansion is void. It is possible to intermix files and diversion numbers. Often it is not known, when output is diverted, whether the diverted text is actually needed. Since all non-empty diversion are brought back on the main output stream when the end of input is seen, a method of discarding a diversion is needed.
It is called just like undivert , but the effect is to clear the diversions, given by the arguments. This macro has a nasty bug! You should try to see if you can find it and correct it; or see Answers. There are a number of builtins in m4 for manipulating text in various ways, extracting substrings, searching, substituting, and so on.
Expands to the index of the first occurrence of substring in string. The first character in string has index 0. Omitting substring evokes a warning, but still produces output; contrast this with an empty substring. Searches for regexp in string.
If replacement is omitted, regexp expands to the index of the first match of regexp in string. If regexp does not match anywhere in string , it expands to If there was no match, regexp expands to the empty string. Omitting regexp evokes a warning, but still produces output; contrast this with an empty regexp argument. Expands to the substring of string , which starts at index from , and extends for length characters, or to the end of string , if length is omitted.
The starting index of a string is always 0. The expansion is empty if there is an error parsing from or length , if from is beyond the end of string , or if length is negative. Expands to string , with each character that occurs in chars translated into the character from replacement with the same index. If replacement is shorter than chars , the excess characters of chars are deleted from the expansion; if chars is shorter, the excess characters in replacement are silently ignored.
If replacement is omitted, all characters in string that are present in chars are deleted from the expansion.
If a character appears more than once in chars , only the first instance is used in making the translation. Only a single translation pass is made, even if characters in replacement also appear in chars.
As a GNU extension, both chars and replacement can contain character-ranges, e. Back-to-back ranges can share a common endpoint. In that case, the range runs backwards, i. The expansion of a range is dependent on the underlying encoding of characters, so using ranges is not always portable between machines. Searches string for matches of regexp , and substitutes replacement for each match.
The parts of string that are not covered by any match of regexp are copied to the expansion. Whenever a match is found, the search proceeds from the end of the match, so a character from string will never be substituted twice.
If regexp matches a string of zero length, the start position for the search is incremented, to avoid infinite loops. The replacement argument can be omitted, in which case the text matched by regexp is deleted. Here is a slightly more realistic example, which capitalizes individual words or whole sentences, by substituting calls of the macros upcase and downcase into the strings. Expand to text , but with capitalization changed: upcase changes all letters to upper case, downcase changes all letters to lower case, and capitalize changes the first character of each word to upper case and the remaining characters to lower case.
First, an example of their usage, using implementations distributed in m As presented here, the capitalize macro has some subtle flaws. You should try to see if you can find and correct them; or see Answers. While regexp replaces the whole input with the replacement as soon as there is a match, patsubst replaces each occurrence of a match and preserves non-matching pieces:.
Works much like the C function printf. Using the forloop macro defined earlier see Forloop , this example shows how format can be used to produce tabular output. Unrecognized specifiers result in a warning. It is anticipated that a future release of GNU m4 will support more specifiers, and give better warnings when various problems such as overflow are encountered.
Likewise, escape sequences are not yet recognized. Integer arithmetic is included in m4 , with a C-like syntax. As convenient shorthands, there are builtins for simple increment and decrement operations. Increment and decrement of integers are supported using the builtins incr and decr :.
Expand to the numerical value of number , incremented or decremented, respectively, by one. Except for the empty string, the expansion is empty if number could not be parsed. Expands to the value of expression. The expansion is empty if a problem is encountered while parsing the arguments. If specified, radix and width control the format of the output. Calculations are done with bit signed numbers.
Overflow silently results in wraparound. A warning is issued if division by zero is attempted, or if expression could not be parsed. All binary operators, except exponentiation, are left associative. Attempting to use them results in an error. The unary operators could not be used reliably more than once on the same term without intervening parentheses. Starting with version 1. M4 scripts designed to be portable between releases must be aware that parentheses may be required to enforce C precedence rules.
Likewise, division by zero, even in the unused branch of a short-circuiting operator, is not always well-defined in other implementations. Following are some examples where the current version of M4 follows C precedence rules, but where older versions and some other implementations of m4 require explicit parentheses to get the correct result:.
The operator is right-associative, and if evaluated, the exponent must be non-negative, and at least one of the arguments must be non-zero, or a warning is issued.
Within expression , but not radix or width , numbers without a special prefix are decimal. Lower and upper case letters can be used interchangeably in numbers prefixes and as number digits. Parentheses may be used to group subexpressions whenever needed. For the relational operators, a true relation returns 1 , and a false relation return 0. As the last two lines show, eval does not handle macro names, even if they expand to a valid expression or part of a valid expression.
Therefore all macros must be expanded before they are passed to eval. Some calculations are not portable to other implementations, since they have undefined semantics in C, but GNU m4 has well-defined behavior on overflow.
When shifting, an out-of-range shift amount is implicitly brought into the range of bit signed integers using an implicit bit-wise and with 0x1f. If radix is specified, it specifies the radix to be used in the expansion. The default radix is 10; this is also the case if radix is the empty string. A warning results if the radix is outside the range of 1 through 36, inclusive. The result of eval is always taken to be signed. No radix prefix is output, and for radices greater than 10, the digits are lower case.
The width argument specifies the minimum output width, excluding any negative sign. The result is zero-padded to extend the expansion to the requested width. A warning results if the width is negative.
If radix or width is out of bounds, the expansion of eval is empty. There are a few builtin macros in m4 that allow you to run shell commands from within m4.
Note that the definition of a valid shell command is system dependent. But on other systems, such as native Windows, the shell has a different syntax of commands that it understands. Sometimes it is desirable for an input file to know which platform m4 is running on. GNU m4 provides several macros that are predefined to expand to the empty string; checking for their existence will confirm platform details.
Each of these macros is conditionally defined as needed to describe the environment of m4. If defined, each macro expands to the empty string. For now, these macros silently ignore all arguments, but in a future release of M4, they might warn if arguments are present.
If GNU m4 does not provide a platform macro for your system, please report that as a bug. The expansion of syscmd is void, not the output from shell-command! Output or error messages from shell-command are not read by m4. See Esyscmd , if you need to process the command output. Prior to executing the command, m4 flushes its buffers. The default standard input, output and error of shell-command are the same as those of m4. Note how the expansion of syscmd keeps the trailing newline of the command, as well as using the newline that appeared after the macro.
The following is an example of shell-command using the same standard input as m4 :. It tells m4 to read all of its input before executing the wrapped text, then hand a valid albeit emptied pipe as standard input for the cat subcommand.
When standard input is a seekable file, the subprocess will pick up with the next character not yet processed by m4 ; when it is a pipe or other non-seekable file, there is no guarantee how much data will already be buffered by m4 and thus unavailable to the child.
The default standard input and standard error of shell-command are the same as those of m4. The error output of shell-command is not a part of the expansion: it will appear along with the error output of m4. Note how the expansion of esyscmd keeps the trailing newline of the command, as well as using the newline that appeared after the macro.
Just as with syscmd , care must be exercised when sharing standard input between m4 and the child process of esyscmd.
Expands to the exit status of the last shell command run with syscmd or esyscmd. Expands to 0 if no command has been run yet. It is not possible to distinguish between failed execution and successful execution that had an exit status of , unless there was output from the child process. On UNIX platforms, where it is possible to detect when command execution is terminated by a signal, rather than a normal exit, the result is the signal number shifted left by eight bits.
Commands specified to syscmd or esyscmd might need a temporary file, for output or for some other purpose. There is a builtin macro, mkstemp , for making a temporary file:. In part, this means that using the same template twice in the same input file will result in the same expansion.
This behavior is a security hole, as it is very easy for another process to guess the name that will be generated, and thus interfere with a subsequent use of syscmd trying to manipulate that file name. Hence, POSIX has recommended that all new implementations of m4 provide the secure mkstemp builtin, and that users of m4 check for its existence.
If you try this next example, you will most likely get different output for the two file names, since the replacement characters are randomly chosen:. Unless you use the --traditional command line option or -G , see Invoking m4 , the GNU version of maketemp is secure.
This means that using the same template to multiple calls will generate multiple files. However, we recommend that you use the new mkstemp macro, introduced in GNU M4 1. Also, as of M4 1. This chapter describes various builtins, that do not really belong in any of the previous chapters.
Prints message and the rest of the arguments to standard error, separated by spaces. Standard error is used, regardless of the --debugfile option see Invoking m4. The expansion of errprint is void. The macro errprint is recognized only with parameters. A trailing newline is not printed automatically, so it should be supplied as part of the argument, as in the example.
Unfortunately, the exact output of errprint is not very portable to other m4 implementations: POSIX requires that all arguments be printed, but some implementations of m4 only print the first. Furthermore, some BSD implementations always append a newline for each errprint call, regardless of whether the last argument already had one, and POSIX is silent on whether this is acceptable. Expand to the quoted name of the current input file, the current input line number in that file, and the quoted name of the current invocation of m4.
Line numbers start at 1 for each file. Redefining the three location macros has no effect on syncline, debug, warning, or error message output. This example reuses the file incl. The location of macros invoked during the rescanning of macro expansion text corresponds to the location in the file where the expansion was triggered, regardless of how many newline characters the expansion text contains. As of GNU M4 1. The intent is that you can use it to produce error messages with the same formatting that m4 produces internally.
It can also be used within syscmd see Syscmd to pick the same version of m4 that is currently running, rather than whatever version of m4 happens to be first in PATH. It was first introduced in GNU M4 1. If you need to exit from m4 before the entire input has been read, you can use m4exit :.
Causes m4 to exit, with exit status code. If code is left out, the exit status is zero. If code cannot be parsed, or is outside the range of 0 to , the exit status is one. No further input is read, and all wrapped and diverted text is discarded. Abort processing with an error message and non-zero status. Prefix message with details about where the error occurred, and print the resulting string to standard error. After this macro call, m4 will exit with exit status 1. This macro is only intended for error exits, since the normal exit procedures are not followed, i.
This macro could be made more robust to earlier versions of m4. You should try to see if you can find weaknesses and correct them; or see Answers. Note that it is still possible for the exit status to be different than what was requested by m4exit.
If m4 detects some other error, such as a write error on standard output, the exit status will be non-zero even if m4exit requested zero. If standard input is seekable, then the file will be positioned at the next unread character. If it is a pipe or other non-seekable file, then there are no guarantees how much data m4 might have read into buffers, and thus discarded. Some bigger m4 applications may be built over a common base containing hundreds of definitions and other costly initializations.
Reading the common base of a big application, over and over again, may be time consuming. GNU m4 offers some machinery to speed up the start of an application using lengthy common bases. Suppose a user has a library of m4 initializations in base. Rather than spending time parsing the fixed contents of base. The first call, containing the -F option, only reads and executes file base. Once the input file base. Later calls, containing the -R option, are able to reload the internal state of m4 , from base.
This means instead of starting with a virgin copy of m4 , input will be read after having effectively recovered the effect of a prior run.
In our example, the effect is the same as if file base. However, this effect is achieved a lot faster. Only one frozen file may be created or read in any one m4 invocation. It is not possible to recover two frozen files at once. However, frozen files may be updated incrementally, through using -R and -F options simultaneously.
For example, if some care is taken, the command:. Some care is necessary because not every effort has been made for this to work in all cases.
In particular, the trace attribute of macros is not handled, nor the current setting of changeword. Currently, m4wrap and sysval also have problems. Also, interactions for some options of m4 , being used in one call and not in the next, have not been fully analyzed yet. On the other end, you may be confident that stacks of pushdef definitions are handled correctly, as well as undefined or renamed builtins, and changed strings for quotes or comments.
And future releases of GNU M4 will improve on the utility of frozen files. When an m4 run is to be frozen, the automatic undiversion which takes place at end of execution is inhibited. Instead, all positively numbered diversions are saved into the frozen file. The active diversion number is also transmitted. A frozen file to be reloaded need not reside in the current directory. It is looked up the same way as an include file see Search Path.
If the frozen file was generated with a newer version of m4 , and contains directives that an older m4 cannot parse, attempting to load the frozen file with option -R will cause m4 to exit with status 63 to indicate version mismatch.
Frozen files are sharable across architectures. It is safe to write a frozen file on one machine and read it on another, given that the second machine uses the same or newer version of GNU m4. It is conventional, but not required, to give a frozen file the suffix of. These are simple editable text files, made up of directives, each starting with a capital letter and ending with a newline NL.
In the following descriptions, each len refers to the length of the corresponding strings str in the next line of input. Numbers are always expressed in decimal. There are no escape characters.
The M4 is all-new and represents the nameplate's second generation. However, it has essentially taken the place of the old M3 coupe. While there's much ado about its controversially large kidney grille, the new M4 has a host of impressive enhancements over the outgoing version. For the first time, BMW will also offer the two-door M car with an all-wheel-drive system that includes a rear-drive-only mode for ass-out antics and a different type of driving behavior will. However, it won't be available until the model year along with the new fabric-topped convertible variant , which will only be offered in Competition guise a.
There are a number of good reasons to spend the extra coin on the M4 Competition, including the extra horsepower and torque as well as the eventual availability of all-wheel drive. However, we'd choose the regular M4 for one really good reason—it's the only one with a satisfying manual transmission.
We'd also opt for the lightweight and extra-supportive M Carbon bucket seats as well as the M Drive Professional package onboard drift analyzer and lap timer and the M Driver's package, which unlocks a higher top speed and includes a one-day class for high-performance driving. The M4 is motivated by a twin-turbocharged 3.
The standard version makes horsepower and lb-ft of torque. It pairs with rear-wheel drive and a six-speed manual transmission. The Competition model generates horsepower and lb-ft, but the lone transmission choice is an eight-speed automatic.
0コメント