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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2008 Google Inc.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > // All Rights Reserved.< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // Redistribution and use in source and binary forms, with or without< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > // modification, are permitted provided that the following conditions are< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > // met:< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // * Redistributions of source code must retain the above copyright< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "comment" > // notice, this list of conditions and the following disclaimer.< / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "comment" > // * Redistributions in binary form must reproduce the above< / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "comment" > // copyright notice, this list of conditions and the following disclaimer< / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "comment" > // in the documentation and/or other materials provided with the< / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "comment" > // distribution.< / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "comment" > // * Neither the name of Google Inc. nor the names of its< / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "comment" > // contributors may be used to endorse or promote products derived from< / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "comment" > // this software without specific prior written permission.< / span > < / div >
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< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "comment" > // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS< / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < span class = "comment" > // " AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT< / span > < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "comment" > // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR< / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "comment" > // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT< / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "comment" > // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,< / span > < / div >
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< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "comment" > // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,< / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "comment" > // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY< / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "comment" > // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT< / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "comment" > // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE< / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "comment" > // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.< / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "comment" > // Author: wan@google.com (Zhanyong Wan)< / span > < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "comment" > // Author: vladl@google.com (Vlad Losev)< / span > < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "comment" > // This provides interface PrimeTable that determines whether a number is a< / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "comment" > // prime and determines a next prime number. This interface is used< / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "comment" > // in Google Test samples demonstrating use of parameterized tests.< / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "preprocessor" > #ifndef GTEST_SAMPLES_PRIME_TABLES_H_< / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define GTEST_SAMPLES_PRIME_TABLES_H_< / span > < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < span class = "preprocessor" > #include < algorithm> < / span > < / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
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< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > // The prime table interface.< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "classPrimeTable.html" > 43< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classPrimeTable.html" > PrimeTable< / a > {< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "keyword" > virtual< / span > ~< a class = "code" href = "classPrimeTable.html" > PrimeTable< / a > () {}< / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > // Returns true iff n is a prime number.< / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > bool< / span > IsPrime(< span class = "keywordtype" > int< / span > n) < span class = "keyword" > const< / span > = 0;< / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "comment" > // Returns the smallest prime number greater than p; or returns -1< / span > < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > // if the next prime is beyond the capacity of the table.< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > int< / span > GetNextPrime(< span class = "keywordtype" > int< / span > p) < span class = "keyword" > const< / span > = 0;< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   };< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > // Implementation #1 calculates the primes on-the-fly.< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > < a class = "line" href = "classOnTheFlyPrimeTable.html" > 56< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classOnTheFlyPrimeTable.html" > OnTheFlyPrimeTable< / a > : < span class = "keyword" > public< / span > < a class = "code" href = "classPrimeTable.html" > PrimeTable< / a > {< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > bool< / span > IsPrime(< span class = "keywordtype" > int< / span > n)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "keywordflow" > if< / span > (n < = 1) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 2; i*i < = n; i++) {< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > // n is divisible by an integer other than 1 and itself.< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < span class = "keywordflow" > if< / span > ((n % i) == 0) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   }< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   }< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > int< / span > GetNextPrime(< span class = "keywordtype" > int< / span > p)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > n = p + 1; n > 0; n++) {< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > if< / span > (IsPrime(n)) < span class = "keywordflow" > return< / span > n;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   }< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "keywordflow" > return< / span > -1;< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   }< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   };< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "comment" > // Implementation #2 pre-calculates the primes and stores the result< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "comment" > // in an array.< / span > < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > < a class = "line" href = "classPreCalculatedPrimeTable.html" > 80< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "classPreCalculatedPrimeTable.html" > PreCalculatedPrimeTable< / a > : < span class = "keyword" > public< / span > < a class = "code" href = "classPrimeTable.html" > PrimeTable< / a > {< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < span class = "comment" > // ' max' specifies the maximum number the prime table holds.< / span > < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "classPreCalculatedPrimeTable.html" > PreCalculatedPrimeTable< / a > (< span class = "keywordtype" > int< / span > max)< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   : is_prime_size_(max + 1), is_prime_(< span class = "keyword" > new< / span > < span class = "keywordtype" > bool< / span > [max + 1]) {< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   CalculatePrimesUpTo(max);< / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   }< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "keyword" > virtual< / span > ~< a class = "code" href = "classPreCalculatedPrimeTable.html" > PreCalculatedPrimeTable< / a > () { < span class = "keyword" > delete< / span > [] is_prime_; }< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > bool< / span > IsPrime(< span class = "keywordtype" > int< / span > n)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "keywordflow" > return< / span > 0 < = n & & n < is_prime_size_ & & is_prime_[n];< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   }< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "keyword" > virtual< / span > < span class = "keywordtype" > int< / span > GetNextPrime(< span class = "keywordtype" > int< / span > p)< span class = "keyword" > const < / span > {< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > n = p + 1; n < is_prime_size_; n++) {< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "keywordflow" > if< / span > (is_prime_[n]) < span class = "keywordflow" > return< / span > n;< / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   }< / div >
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< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < / div >
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< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > return< / span > -1;< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   }< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "keywordtype" > void< / span > CalculatePrimesUpTo(< span class = "keywordtype" > int< / span > max) {< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   ::std::fill(is_prime_, is_prime_ + is_prime_size_, < span class = "keyword" > true< / span > );< / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   is_prime_[0] = is_prime_[1] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 2; i < = max; i++) {< / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordflow" > if< / span > (!is_prime_[i]) < span class = "keywordflow" > continue< / span > ;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "comment" > // Marks all multiples of i (except i itself) as non-prime.< / span > < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > j = 2*i; j < = max; j += i) {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   is_prime_[j] = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   }< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   }< / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   }< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   < / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > int< / span > is_prime_size_;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "keywordtype" > bool< / span > * < span class = "keyword" > const< / span > is_prime_;< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   < / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < span class = "comment" > // Disables compiler warning " assignment operator could not be generated." < / span > < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < span class = "keywordtype" > void< / span > operator=(< span class = "keyword" > const< / span > < a class = "code" href = "classPreCalculatedPrimeTable.html" > PreCalculatedPrimeTable< / a > & rhs);< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   };< / div >
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< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < / div >
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< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "preprocessor" > #endif // GTEST_SAMPLES_PRIME_TABLES_H_< / span > < / div >
< div class = "ttc" id = "classPreCalculatedPrimeTable_html" > < div class = "ttname" > < a href = "classPreCalculatedPrimeTable.html" > PreCalculatedPrimeTable< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "prime__tables_8h_source.html#l00080" > prime_tables.h:80< / a > < / div > < / div >
< div class = "ttc" id = "classPrimeTable_html" > < div class = "ttname" > < a href = "classPrimeTable.html" > PrimeTable< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "prime__tables_8h_source.html#l00043" > prime_tables.h:43< / a > < / div > < / div >
< div class = "ttc" id = "classOnTheFlyPrimeTable_html" > < div class = "ttname" > < a href = "classOnTheFlyPrimeTable.html" > OnTheFlyPrimeTable< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "prime__tables_8h_source.html#l00056" > prime_tables.h:56< / a > < / div > < / div >
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