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I've seen different methods used for calling through pointers to functions. What's the story?

Infrequently Asked Questions in comp.lang.c
In the old days, when Microsoft first invented C, the syntax for calling functions involved more parentheses; this was after their market research indicated that most C programmers would be coming from a Lisp environment. Later, when Kernighan took over the language design (right after AT&T bought Microsoft's language technology), he decided to eliminate the parentheses, but the old form is still allowed.
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The C Language FAQ
Originally, a pointer to a function had to be "turned into" a "real" function, with the * operator (and an extra pair of parentheses, to keep the precedence straight), before calling: int r, func(), (*fp)() = func; r = (*fp)(); It can also be argued that functions are always called through pointers, but that "real" functions decay implicitly into pointers (in expressions, as they do in initializations) and so cause no trouble.
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I've seen different syntax used for calling functions via pointers. What's the story?

All Questions
What's the total generic pointer type? My compiler complained when I tried to stuff function pointers into a void *.
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What are the different methods used in the practice of Electrology?

Absolutely! Electrolysis Salon & Permanent Makeup
ELECTROLYSIS: Direct current (DC) is used to achieve chemical destruction of the hair follicle. One or more sterile probes are used. THERMOLYSIS: Alternating current (AC) sometimes referred to as high frequency or shortwave is used to create heat which destroys the hair follicle. One sterile probe is used. BLEND: (also referred to as Dual Modality) both of the above currents are used simultaneously or sequentially to achieve dual action destruction of the hair follicle.
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Why do the strips look different than the other Whitestrips I've used/seen?

Crest Whitestrips® Multicare Daily
Crest Whitestrips Daily Multicare contains 42 pouches. Each convenient pouch contains 1 upper and 1 lower strip. The strips are on a single backing liner. The upper strip is slightly longer than the lower strip.
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I've seen a lot of different vests. Why should I get yours?

The SmartVest And Mind & Movement Training: Brought To Y...
This is what we do. We know how important the function of the product is to your performance. You need education, how-to-use guidelines, sport-specific skill development programs, and someone who understands what you are really trying to accomplish. Your complete satisfaction is our goal. It starts with solid recommendations, guaranteed sizing and fit, timely deliver, followup, and a passion for continued quality.
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I've seen cars with different types of hoods. Which do you have?

FIA Frequently Asked Questions
The ERA 289FIA is available with and without a molded-on hood scoop. The original street 289's didn't have a scoop, but the comp cars did. The scoop is necessary with a 351 engine. Some 302's will fit under a plain hood.
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I've used Dove. How is Enchanted Waters soaps different?

eBay Store - Best Buy By Far: FAQ
Simply stated, Enchanted Waters contains only vegetable oils and sustainable plant materials. Dove contains animal fat, petroleum derivatives, synthetic colorings, synthetic fragrances and chemical preservatives. Compare ingredients: Enchanted Waters (Isle of Dreams) Ingredients: Saponified oils of olive, palm, coconut, soybean, shea butter, purified water, essential oils of Thyme, Spearmint, Frankincense & Sweet Basil, glycerin, Vitamin E & gardenia fruit extract / acorn shell powder.
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How are the methods used in this project different from other studies I've read?

Frequently Asked Questions
The Dartmouth Atlas Project uses a methodology, commonly known as small area analysis, which is population-based. The focus of small area analysis is on the experience of the population living in a defined geographic area or the population that uses a specific hospital. Other studies have used a "turnstile" approach, focusing on the number of procedures or hospitalizations in the hospital, without reference to the size of the population served.
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Which are the different methods used for whitening?

Cosmetic Dentistry and Cosmetic Dentists FAQ at Perfectdenti...
If the patient decides to do the home teeth whitening, the cosmetic dentist will prepare a custom mouth tray for the patient. The tray ensures that the correct amount of whitening solution is used and that the patient's teeth are properly exposed to the whitening solution. It is important that the tray is customized to give patient safety as well. The cosmetic dentist provides the materials and instructions to the patient who will follow the treatment for two to three weeks.
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I've seen <nickname> being used. Who does it refer to?

The Rush Frequently Asked Questions on the Internet File
Ged and Neil also have nicknames, Dirk and Pratt. Hence "Lerxtwood Mall," "Olde Dirk Road" and "B.J. Pratt & Assoc." on the map on the back cover of Signals.
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I've seen your vans in the community, what are they used for?

FAQs
We have a large van with a wheelchair lift and two mini vans that are used daily for transporting residents to medical appointments and for activity and adult day service outings. You are welcome to visit at any time; however, to provide answers to the many questions you are likely to have, we recommend that you contact either Tanya Smith, for the Nursing Facility or Ronnalean Sanborn for the Residential Care Facility for a guided tour.
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But I've seen LCDs used in dashboards--what about those?

LCD Serial Backpack® FAQ
There are two broad categories of LCDs--static drive and multiplexed. Static-drive LCDs are typically seven-segment numeric or bargraph displays. They're called static because every liquid-crystal segment receives a constant driving voltage. This means that there must be a connection--a wire--to drive every visible element of the display. It's not practical to make graphic or dot-matrix alphanumeric displays that way, since a 2x16 display would entail at least 1120 separate connections.
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Why do your fender flares look different from some of the kits I've seen?

FIA Frequently Asked Questions
To be blunt - Because theirs are wrong! We took great pains to copy the only original FIA body left. All the other cars have been rebodied at one time or another. After all, all the FIAs were race cars and were involved in occasional shunts.
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I've seen other 'post' cards. What's different about yours?

Universal Diagnostic Toolkit for PCs from Micro2000 UK
It's true we've had imitators, but so far nobody else has been able to put PCI and ISA on the same card. Some other unique features are a step-through switch that lets you see if the BIOS is corrupted and doing tests in the wrong order, and multiple displays to make the card easy to use in all motherboard configurations. You can sometimes get by with swapping parts, but if it's an expensive part like the CPU, or something that's soldered to the motherboard, that's not a very practical approach.
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I've seen two different organic statements on your bags, is there a difference between them?

Frequently Asked Questions
The new labels are in compliance with the USDA National Organic Practices law. The old CA Organic Foods Act of 1990 is obsolete, and our new bags reflect this. There has been absolutely no change in our products. We have been in compliance with the USDA law since starting Pacific Bakery in 1986. Much of the salt everyone eats (in packaged, prepared food) is sea salt...it's just not labeled "sea salt.
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Is Discordia different from other blogs I've seen?

Discordia || Frequently Asked Questions
Most blogs only post stories written by the editor or editors. Some blogs allow readers to post comments about stories, and some allow users to submit stories to editors, who then decide what stories get posted. But very few blogs allow readers to decide for themselves what stories get posted - peer moderation. On Discordia, readers submit stories into a moderation queue, and other readers decide what stories get posted. Examples of other peer moderated weblog sites are Indymedia and Kuro5hin.
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I've seen spells on other websites, why is this one different?

SpellsWizard.com | Frequently Asked Questions
There are many amateur websites that contain spells of varying degrees of usefulness, usually with little or no indication of their origin, the proper ingredients to use, or other critical information. At SpellsWizard.com we are more professional. We take magic and spell-casting seriously.
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I've never seen duplication happen before. How is this different?

FAQ - Earn money: 1.7 million dollar with your paid to read ...
and strugglers (people who can't seem to recruit a soul). The heavy hitters are successful no matter what they join and always make money. The strugglers always struggle and rarely make money. This program makes everyone a heavy hitter, because it FORCES duplication. It is in your best interest to always be helping the newest PRO on your team. Log-in to HUC/eBizRotator and read "MLM Security" so you understand the importance of building DEEP rather than WIDE, and
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What's the story on the different amplifier "classes"?

Amplifiers - FAQ
An amplifier's circuit design determines its class of operation. Class A amplifiers are desirable for the high quality of their sound, but the design is not particularly suited to car applications because of inefficiency and high heat production. Car amplifiers that boast Class A design are usually a Class A/Class AB hybrids. The Class AB design is most commonly used for car amplifiers because it combines reasonable efficiency, low distortion, and reliability.
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Where has this been used and what results have others seen?

Frequently Asked Questions
The SVS technology has been used in very large scale brazing furnaces, verification of high-energy atomic waste process, safety interlocks in hydrogen cyanide converters, glass industry melters (combustion gasses and molten glass) and research laboratories, to mention a few. Customers claim pay back of weeks and yields and performance enhancements in the millions of dollars annually.
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I've seen different forms of business card CD, are they different?

FAQ
Except the shape, there is no difference in terms of functionality. The most commonly seen business cards CD are the rounded-edges (so called hockey rink) and the rectangular shape. The rounded-edges has an 80mm width across and can fit right into the inner tray of any standard CD-ROM drive. It is actually an 80mm CD-ROM with portion of the top and bottom chopped off. The rectangular shape relies on tracks or extruded surface to fit into the same tray as the rounded-edges one does.
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How will I know if I've used up the value of the prepaid calling card?

Frequently Asked Questions - Devicomm.com
At the beginning of each call a message will indicate how many minutes are left on your card. A warning tone will sound during your phone call when you have one minute remaining.
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How will I know if I've used up the value of the calling card?

e4tel networks - Canadian Phone Cards
When you use your calling card and enter your PIN, a recorded message indicates how many minutes are left on the card. You'll hear a warning message during your phone call when you have one minute of calling time left on your card. top
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What do I do after I've used up my Longdistance.com pre-paid calling card?

prepaid cards from longdistance.com
For your convenience, you can recharge your Longdistance.com pre-paid calling card for your future calls. Please call our personalized Customer Service at 1-800-466-1550 to recharge your card. Back to questions.
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What are laser pointers?

FDA Radiological Health Program - Frequently Asked Questions...
Laser pointers are tools used for pointing out objects or locations, and are defined as "surveying, leveling, and alignment laser products" in an FDA regulation. They are commonly used during lectures and astronomy presentations, and laser pointers incorporated into spirit levels and hand tools are also very popular. In recent years laser pointers have become readily available, and are commonly sold in hardware, pet, hobby, and office supply stores.
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