[c/c++]柔性数组

/ 25评论 / 731阅读 / 0点赞

柔性数组

在C99标准之后,在结构体中最后一个元素允许是未知大小的,称之为柔性数组

struct CoolArr_s{
	int len;
	char arr[];
};
#include "stdio.h"
#include "stdlib.h"

struct CoolArr_s
{
        int len;
        char arr[];
};

int main()
{
        //这里给arr的长度为10个char的大小
        struct CoolArr_s* p = (struct CoolArr_s*)malloc(sizeof(int) + sizeof(char) * 10);
        for (int i = 10; i--;)
        {
                (p->arr)[i] = i + '0';
                printf("%d " ,(p->arr)[i]);
        }
        printf("\n CoolArr_s: %d, *p: %d\n", sizeof(struct CoolArr_s), sizeof(*p));
        return 0;
}

在C++中的柔性数组

注意:在c++中并不建议使用柔性数组,而应考虑使用array代替。即使它可以使用在struct和class中,但部分编译器是不支持这种操作的。

#include <iostream>
#include <array>
using namespace std;

int main()
{
        //数组长度
	const int len_arr = 10;
        //定义数组
	array<int, len_arr> arr;
        //array::data()返回数组的首地址
        //array::begin()返回的是迭代器iterator
	int *arr_p = arr.data();
	for (int i = len_arr; i--;)
	{
		arr_p[i] = i;
		cout << arr[i] << " ";
	}
	cout << endl;
	return 0;
}
  1. Assumpmok说道:

    J K Cruickshank achat levitra en belgique According to Finkelstein et al, initial studies using a combination of concurrent PTH and bisphosphonate therapy showed decreased benefit compared with therapy with either agent alone; therefore, the general recommendation is that these drugs be given separately and in sequence

  2. Assumpmok说道:

    5 Potassium perchlorate; pfizer levitra

  3. Griff说道:

    This process is automatic. Your browser will redirect to your requested content shortly. Freispiele, Gratis Spins, kostenlose Drehungen oder Free Spins – die Bezeichnungen sind vielfältig und lassen jedes Spielerherz schneller schlagen. Wenn wir von Online Casino Freispielen sprechen, geht es um einen Freispiel Bonus, der in drei verschiedene Kategorien eingeteilt werden kann. Immerhin verheißen diese speziellen Boni mit ein wenig Glück und ohne Risiko besondere Gewinnchancen! Wichtig ist, dass Du Dich nicht durch die Bonusangebote ohne Einzahlung blenden lässt– egal wie großzügig diese erscheinen. Sondern Du solltest Wert darauf legen, dass das Spieleportfolio im Casino mit den eigenen Bedürfnissen übereinstimmt. Außerdem sollte das Casino in einem unabhängigen Test in allen wichtigen Punkten gut abgeschnitten haben. In einem ausführlichen Casino Test stellt der Casino Bonus ohne Einzahlung ein bedeutungsvolles Bewertungskriterium dar, wobei ein solcher Bonus auch nur ein Teil in der bunten Welt der Casinos ist.
    https://medvacancy.ru/user/profile/509976
    Bei PokerStars gibt es immer besondere Aktionen für Echtgeldspieler. Normalerweise werden Sie hiervon per E-Mail in Kenntnis gesetzt. Sie sehen spezielle Aktionen auch sofort, wenn Sie sich mit Ihrer PokerStars App bei der Pokerseite einloggen. Als wir unseren Test von PokerStars durchgeführt haben, gab es beispielsweise einen ganzen Monat lang den Spin & Go Challenge. Nach Angaben von PokerStars betreffe die Aussetzung des Spielgeldangebots ausschließlich Kunden aus Deutschland. Der Online-Poker-Anbieter begründet die Entscheidung auf seiner Webseite wie folgt: Es ist nicht allseits bekannt, aber unter dem Namen Pokerstars kann nicht nur gepokert werden, es gibt auch ein Casino und zu diesem gehört wiederum ein Live Casino. Es kann mit einem Smartphone oder mit einem Tablet Computer über die Casino App oder über die mobile Website von Pokerstars Vegas besucht werden. Es empfiehlt sich schnelles Internet, ansonsten macht ein Besuch keinen Sinn.

  4. Rar说道:

    “Our direct exposure to FTX meltdown is immaterial: less than $10m in our own capital deposited there for customers’ trade execution,” the Crypto CEO wrote at the time. “That’s very little compared to our global revenues surpassing US$1 billion for two consecutive years,” he added. Home » Crypto Trading Volume Sinks by 91%  Minimum trades on Crypto vary based on the cryptocurrency being traded. For Bitcoin, the most valuable cryptocurrency, the platform adjusts the minimum regularly to keep it at the equivalent of $1 or below. Bitcoin, the world’s most popular cryptocurrency, is trading down more than 15% from its all-time high it set earlier this month at US$57,274, while the number two, Ethereum is down 12% from its all-time high from around the same time at US$4,277, according to CoinMarketCap.
    http://www.hjvalve.co.kr/bbs/board.php?bo_table=free&wr_id=37121
    So what is Bitcoin SV? Its vow is to strictly follow Satoshi Nakamoto’s whitepaper for Bitcoin, which was published all the way back in October 2008. The price of BSV opened on Jan. 11 at $44.95 but has fallen 16.97% as of press time to $37.29. Bitcoin is also experiencing a ‘red day’ with the flagship crypto dropping 0.91%. However, the price decline for Bitcoin is still well above the $17,000 mark as the retracement failed to mirror the losses of BSV. According to our Bitcoin BSV price predictions, an increase in future prices is anticipated according to historical data and deep technical analysis. This is not investment advice. You should do more research to determine if Bitcoin SV is right for you, including reading the white paper, reviewing any public roadmaps, examining user reviews and social media accounts, and seeking external financial counsel.

  5. Tes说道:

    Blackjack 21: Blackjackist Existem 5 tipos principais de jogos de blackjack online que são os preferidos da grande maioria dos jogadores de blackjack em casinos online. Veja abaixo um pouco mais sobre cada um deles para que você possa escolher o tipo de blackjack online que mais te agrada. Este é um dos melhores programas de recompensas que Nova Jersey tem a oferecer, as parcerias com as empresas de software mais conhecidas e a variedade de formas de pagamento. Você pode continuar girando as rodas até atingir um segmento de coleta ou o X prêmio em dinheiro na terceira roda, o Slot Power Stars não possui um símbolo de dispersão com o qual os jogos gratuitos possam ser acionados. O tema multiplayer se estende também ao blackjack com sua própria versão dedicada, uma garrafa de rum. Nossa estratégia de Poker de 3 cartas irá ajudá – lo a tomar as decisões certas na mesa, um barril.
    http://xn--hq1bq8p28dm5f.xn--mk1bu44c/bbs/board.php?bo_table=free&wr_id=65056
    Bingo online deposito minimo 5 euros Cassino sem depósito pagamento paypal em Brasil existem Wilds dançantes e wilds de bloqueio no jogo, e você poderia ser dada a oportunidade de servir uma das quatro grandes casas de Westeros. Os jogadores que não gostam da ideia de serem confinados em limites de depósito desfavoráveis agora podem jogar confortavelmente em cassinos sem depósito mínimo, se você preferir. Permaneça na faixa central e siga as placas aéreas para T3, roleta como funciona em brasil poderá diminuir ainda mais a vantagem da casa. É uma opção ideal para quem quer experimentar o funcionamento de uma Roleta, para treinar ou para entender como funciona o jogo. A Leovegas, com todo o seu arsenal de jogos de cassino, costumando oferecer jogos de roleta online para recém-chegados.

  6. Draitty说道:

    Aberrant estrogen receptor О± ERО± expression and signaling are implicated in the development of hepatocellular carcinoma HCC, but its regulation in HCC remains enigmatic priligy over the counter Lucas, USA 2022 06 19 07 39 34

  7. abats说道:

    El crecimiento de la industria del juego es constante. Por eso, es normal encontrar novedosos casinos online 2023 en España. Estos nuevos casinos online España, vienen preparados para ofrecer a sus jugadores las mejores App móviles. Al igual que traen innovadoras ideas, que hacen la experiencia más completa. Por lo que encontrarás casinos online con variedad de juegos, presentados en diferentes modalidades y temáticas. Evolution Gaming, con sede en Riga, es uno de los fabricantes de software más elegidos por la gran mayoría de casinos en España. Destacan fundamentalmente por sus juegos de casino en vivo (ruleta y blackjack) y han sido galardonados como Mejor Proveedora de Emisiones en Directo de Casinos durante varios años consecutivos por la gran calidad de su software de casino con retransmisiones en directo con crupieres en vivo. Estas son algunas de las ruletas de Evolution Gaming: European Roulette, French Roulette, Slingshot Auto Roulette…
    https://www.livingtel.com/bbs/board.php?bo_table=free&wr_id=22774
    Según el gerente general del complejo, Fernando Jaramillo, “el Hotel de la Isla hará un considerable aporte al turismo en la zona, contribuirá en forma importante a la difusión de su cultura, tradiciones y magia, y será un aporte para el al desarrollo económico-social de la zona”. A su vez, el hotel tiene cuatro piscinas (una de ellas para niños); servicio de spa completo con vapor, sauna, cabinas de masajes y salón de belleza; deportes acuáticos no motorizados y un centro de más de 270 metros cuadrados para realizar eventos, bodas, reuniones y conferencias. Fomento del Turismo El GRS de ReviewPro es una valoración basada en la recopilación de las puntuaciones numéricas de las webs de opinión del sector hotelero, en donde el huésped da una valoración cuantitativa sobre su experiencia. La valoración se calcula a diario, gracias a un algoritmo desarrollado por ReviewPro junto con expertos del sector y asesores de los principales programas de gestión hotelera.

  8. Tax说道:

    These will give you a fairer idea of which real money online casino sites are worth your time and money and which ones are the most trustworthy. It will also help you to weed out the dodgier ones. Creating an account at the best online casinos is a simple procedure. We’ve prepared a short guide below that you can follow to start playing casino games for real money (using Red Dog as an example). When it comes to ranking the best online casinos in Indiana, Bovada comes in fourth, and it merits its place on the list. It certainly best Indiana online casinos for live games. By partnering with top providers, including BetSoft, Rival, and RTG, the casino offers a variety of Blackjack, Roulette, and Baccarat tables. Most tables include a variety of minimum and maximum table limits, including several with a minimum of just $1.
    https://cruzvazw629630.blogspothub.com/20772635/pay-casino-games-prepaid-gift
    The possibility of big wins combined with eye-catching symbols of your favourite African animals may be convincing enough to start playing. For those who are still undecided, here’s a quick summary of the hits and misses of the Great Rhino Megaways slot by Pragmatic Play to help you decide. Great Rhino Megaways has an RTP between 96.47% and 96.58%. This is in line with most video slots today and is considered a good RTP for a high volatility slot. Lemon Casino offers Great Rhino Megaways slot demo – for free, or real money. The demo lets you experience gameplay. If you try this game, you won’t have to pay any money. The trial gives you plenty of time to examine the product. In terms of the graphics design, the slots experts at Pragmatic Play have created a fully playable game that offers as much as a Megaways slot can. The symbols aren’t animated but they do spring to life when becoming part of a winning outcome. The only symbol that really moves in the Great Rhino Megaways slot is the rhino.

  9. doK说道:

    Mobilná aplikácia Niké sa sťahuje priamo zo stránky Nike.sk. Tu scrollujte dole na “Pre hráčov” a v ponuke nájdete aj sekciu “Aplikácia” (alebo si jednoducho zadajte do prehliadača nike.sk/aplikacia). Súčasťou Niké aplikácie je okrem stávkovej kancelárie aj sekcia Svet hier s najlepšími hrami. Cez Niké app si zahráte zdarma i o reálne peniaze a tiež o jackpoty. Dodajme, že nie všetky kasínové hry sú prítomné aj v mobilnej aplikácii. Zaregistruj sa v herni eTIPOS.sk a tipuj športové stávky. Ak bude tvoja 1. športová stávka nevýherná, vrátime ti celý vklad v podobe bonusu až do 50 €. Hráčsky účet eTipos kasína tak môžete jednoducho dobiť pomocou SMS vkladu cez troch operátorov – Telekom, Orange, O2. Vklad cez SMS nepodporuje operátor 4ka.
    http://www.nuea.kr/bbs/board.php?bo_table=free&wr_id=5466
    Peniaze 10.000 €  ✅  + 890 Spinov!  ➤➤ Free spiny bez vkladu za registráciu b y ste v Synot Tip online casino hľadali márne. Od 80 do 640 voľných spinov na SYNOT automat Respin Joker 243 získate za vklad a následné stávky. Všetky výhry z bezplatných otáčok sa pripíšu na vaše S-konto v skutočných peniazoch a nevzťahujú sa na ne žiadne podmienky pretočenia. Detailne sme sa vstupným bonusom venovali v tomto článku. Ďalšie bonusy: No deposit bonus, Reload bonus, Free bonus, Monacobet free spiny, Doxxbet free spiny, Doublestar free spiny, Casino rewards, Cashback casino bonus Tými najlepšími online casino bonus free spinmi, ktoré môžete nájsť sú free spiny bez vkladu s okamžitým vyplatením výhry hneď po ich uskutočnení.

  10. opigh说道:

    No Allianz Parque, em São Paulo, Tricolor do Morumbi bateu o Porco por 2 a 0 Os palmeirenses também buscam outro feito: terminar o campeonato com 100% de aproveitamento contra os três rivais do estado: foram cinco vitórias em cinco jogos contra Corinthians, Santos e São Paulo até agora. Existe diferença também no mercado de apostas antes e durante um evento. Alguns estão apenas disponíveis em um dos dois momentos, enquanto outros ficam disponíveis antes de iniciar até o seu encerramento. Palmeiras venceu o São Paulo por 4×0 no Allianz Parque O jogo na etapa final foi muito melhor do que no primeiro tempo. O Palmeiras dominou a posse de bola e pressionou bastante o São Paulo, que, no entanto, levou muito perigo nos contra-ataques. Em um desses lances, aos 32 minutos, Micaelly lançou para Cacau tirar da goleira July, marcar seu segundo gol no jogo. Aos 41, Patricia Sochor marcou de cabeça o gol de honra do Verdão.
    https://emiliowwai885185.widblog.com/69897241/jogos-de-ontem-do-campeonato-brasileiro-da-série-b
    As 32 seleções classificadas para o Mundial foram divididas em oito grupos com quatro equipes cada. As duas melhores de cada grupo avançam para o mata-mata. Em caso de times com a mesma pontuação na chave, os critérios de desempate, pela ordem, são: saldo de gols, número de gols marcados, confronto direto, fair play (soma de cartões amarelos e vermelhos) e sorteio. Após fazer a lição de casa e vencer por 2 a 0, o Liverpool visita o Villarreal e pode garantir a vaga na final Champions com apenas um empate. Já o clube espanhol, grande surpresa da competição, terá que ganhar por três gols de diferença para ser a grande zebra europeia de 2022. Jogadores poderão conseguir itens, incluindo a skin da Groza permanente, durante os jogos da seleção brasileira de futebol O influencer Casimiro também recebeu os direitos de transmissão para os jogos do Mundial pelo YouTube (CazéTV) e pela Twitch (Casimito).

  11. wairl说道:

    A business brokerage account for corporations, partnerships, limited liability corporations, and unincorporated legal structures. As a business investor, you must have a business brokerage account. Many brokers don’t offer these, but the brokers below do. Keep in mind that it’s a legal issue, so don’t try to use a personal account for business investing or trading. Brokerage accounts are also called taxable accounts, because investment income within a brokerage account is subject to capital gains taxes. Retirement accounts (such as IRAs) have a different set of tax and withdrawal rules. They may be better for retirement savings and investing. Business brokerage accounts have different nuances than regular brokerage accounts. Get to know the requirements and how to open one before choosing the account for you. It’s best to talk with your tax advisor, too, to ensure you open the account that makes the most financial sense.
    http://www.empiresj.net/Buy-Masks-Rival-Nerf-Masks-At-Store.html
    Finnegan and Mencoff, both of whom have served as co-chief executive officers since 2007, will be succeeded by managing directors Tim Sullivan and Tom Souleles. Sullivan and Souleles will take over as co-CEOs after the formation of the Chicago-based private equity firm’s ninth fund, Madison Dearborn Capital Partners Fund IX, which is slated to launch in 2023, the company said.  Unison’s secure cloud and on-premise software, marketplace and information products “power the business of government” by supporting more than 200,000 users in all United States cabinet-level agencies, major Department of Defense programs and leading federal prime contractors. Log in Who is Madison Dearborn Partners, Llc’s Vice President? © 2023 The University of Chicago. The fund pursues investments in U.S. middle-market and upper-middle-market companies.

  12. THATHECOM说道:

    A naturopath recommended vitex, at no surprise to me, along with several other supplements DIM, milk thistle and some B vitamins comprare cialis online Bai Tu had not seen any movement in the Li family these days

  13. ciree说道:

    Our team is dedicated to finding and telling you more about the products and deals we love. If you love them too and decide to purchase through the links below, we may receive a commission. Pricing and availability are subject to change. Oshry declined to offer a sales projection, but industry sources estimate Hey Humans will bring in $21 million in first-year retail sales. But is Hey Humans deodorant actually healthier than drugstore deodorant or are these just marketing claims? Does the deodorant have research-backed ingredients? Does it have any questionable additive ingredients? And how do real users rate and describe the effects of Hey Humans deodorant? Connect with shoppers One more thing: the water used in cosmetics is purified and deionized (it means that almost all of the mineral ions inside it is removed). Like this, the products can stay more stable over time. 
    http://fiumbio.co.kr/bbs/board.php?bo_table=free&wr_id=44852
    “A lot of are intended to be used in a stippling, or patting, motion, which means that the product won’t overly smeared, blended or sheer during application,” Patinkin explains. The trick to achieving a pro-level contour job is by using a brush to stipple the product upwards under your cheekbones, downwards under your jawbone, and upwards along your temples and hairline. This step I have found to be so crucial in getting really well blended makeup! These brushes are twice the size of foundation brushes and very densely packed. The beautyblender is a sponge with a unique texture, that doesn’t absorb products, but gives an airbrushed finish. Your fingers can come in handy as your greatest makeup tool. If you ever forget your makeup brushes, just dab your finger in for a great replacement. While fingers work great when necessary, it’s probably not your first choice to rub your fingers in your liquid foundation. This can also end up spreading oils from your hands to your face.

  14. THATHECOM说道:

    Although Olanzapine can cause an early dose- related increase in prolactin levels, this effect is not sustained as with Haloperidol or Risperidone cheapest cialis online

  15. grenuenah说道:

    cialis buy online Briefly, PCR products were purified with both Exonuclease I Biolabs, England and Shrimp Alkaline Phosphatase Biolabs, England as per manufacturer s instructions

  16. grenuenah说道:

    Febrile neutropenia was noted in 8 patients 24 and in 8 of the 120 treatment cycles 7 administered cialis 20mg for sale I need to to thank you for your time for this fantastic read

  17. VORVOSESK说道:

    accutane week by week results His cause of death has not been determined

  18. VORVOSESK说道:

    At that time, he didn t take it seriously nolvadex Unfortunately, exceptions to each and every one of these criteria exist

  19. VORVOSESK说道:

    nolvadex bodybuilding stenosis of the internal pudendal artery was similar in comparison to stenosis of coronary arteries 52 vs

  20. Injeway说道:

    where can i buy zithromax capsules It doesn t give you the jitters like some pills do

发表回复

您的电子邮箱地址不会被公开。 必填项已用*标注