C++\u7684 bitset \u5728 bitset \u5934\u6587\u4ef6\u4e2d\uff0c\u5b83\u662f\u4e00\u79cd\u7c7b\u4f3c\u6570\u7ec4\u7684\u7ed3\u6784\uff0c\u5b83\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u53ea\u80fd\u662f\uff10\u6216\uff11\uff0c\u6bcf\u4e2a\u5143\u7d20\u4ec5\u7528\uff11bit\u7a7a\u95f4\u3002<\/p>\n
\u4e0b\u9762\u662f\u5177\u4f53\u7528\u6cd5<\/p>\n
bitset\u5e38\u7528\u6784\u9020\u51fd\u6570\u6709\u56db\u79cd\uff0c\u5982\u4e0b<\/p>\n
bitset<4> bitset1;\u3000\u3000\/\/\u65e0\u53c2\u6784\u9020\uff0c\u957f\u5ea6\u4e3a\uff14\uff0c\u9ed8\u8ba4\u6bcf\u4e00\u4f4d\u4e3a\uff10\n\n bitset<8> bitset2(12);\u3000\u3000\/\/\u957f\u5ea6\u4e3a\uff18\uff0c\u4e8c\u8fdb\u5236\u4fdd\u5b58\uff0c\u524d\u9762\u7528\uff10\u8865\u5145\n\n string s = "100101";\n bitset<10> bitset3(s);\u3000\u3000\/\/\u957f\u5ea6\u4e3a10\uff0c\u524d\u9762\u7528\uff10\u8865\u5145\n \n char s2[] = "10101";\n bitset<13> bitset4(s2);\u3000\u3000\/\/\u957f\u5ea6\u4e3a13\uff0c\u524d\u9762\u7528\uff10\u8865\u5145\n\n cout << bitset1 << endl;\u3000\u3000\/\/0000\n cout << bitset2 << endl;\u3000\u3000\/\/00001100\n cout << bitset3 << endl;\u3000\u3000\/\/0000100101\n cout << bitset4 << endl;\u3000\u3000\/\/0000000010101<\/code><\/pre>\n\u6ce8\u610f\uff1a<\/p>\n
\u7528\u5b57\u7b26\u4e32\u6784\u9020\u65f6\uff0c\u5b57\u7b26\u4e32\u53ea\u80fd\u5305\u542b '0' \u6216 '1' \uff0c\u5426\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n
\u6784\u9020\u65f6\uff0c\u9700\u5728<>\u4e2d\u8868\u660ebitset \u7684\u5927\u5c0f(\u5373size)\u3002<\/p>\n
\u5728\u8fdb\u884c\u6709\u53c2\u6784\u9020\u65f6\uff0c\u82e5\u53c2\u6570\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u6bd4bitset\u7684size\u5c0f\uff0c\u5219\u5728\u524d\u9762\u7528\uff10\u8865\u5145(\u5982\u4e0a\u9762\u7684\u6817\u5b50)\uff1b\u82e5\u6bd4bitsize\u5927\uff0c\u53c2\u6570\u4e3a\u6574\u6570\u65f6\u53d6\u540e\u9762\u90e8\u5206\uff0c\u53c2\u6570\u4e3a\u5b57\u7b26\u4e32\u65f6\u53d6\u524d\u9762\u90e8\u5206(\u5982\u4e0b\u9762\u6817\u5b50)\uff1a<\/p>\n
bitset<2> bitset1(12);\u3000\u3000\/\/12\u7684\u4e8c\u8fdb\u5236\u4e3a1100\uff08\u957f\u5ea6\u4e3a\uff14\uff09\uff0c\u4f46bitset1\u7684size=2\uff0c\u53ea\u53d6\u540e\u9762\u90e8\u5206\uff0c\u537300\n\n string s = "100101";\u3000\u3000\n bitset<4> bitset2(s);\u3000\u3000\/\/s\u7684size=6\uff0c\u800cbitset\u7684size=4\uff0c\u53ea\u53d6\u524d\u9762\u90e8\u5206\uff0c\u53731001\n\n char s2[] = "11101";\n bitset<4> bitset3(s2);\u3000\u3000\/\/\u4e0ebitset2\u540c\u7406\uff0c\u53ea\u53d6\u524d\u9762\u90e8\u5206\uff0c\u53731110\n\n cout << bitset1 << endl;\u3000\u3000\/\/00\n cout << bitset2 << endl;\u3000\u3000\/\/1001\n cout << bitset3 << endl;\u3000\u3000\/\/1110<\/code><\/pre>\n\u53ef\u7528\u7684\u64cd\u4f5c\u7b26<\/h3>\n
bitset\u5bf9\u4e8e\u4e8c\u8fdb\u5236\u6709\u4f4d\u64cd\u4f5c\u7b26\uff0c\u5177\u4f53\u5982\u4e0b<\/p>\n
bitset<4> foo (string("1001"));\n bitset<4> bar (string("0011"));\n\n cout << (foo^=bar) << endl; \/\/ 1010 (foo\u5bf9bar\u6309\u4f4d\u5f02\u6216\u540e\u8d4b\u503c\u7ed9foo)\n cout << (foo&=bar) << endl; \/\/ 0010 (\u6309\u4f4d\u4e0e\u540e\u8d4b\u503c\u7ed9foo)\n cout << (foo|=bar) << endl; \/\/ 0011 (\u6309\u4f4d\u6216\u540e\u8d4b\u503c\u7ed9foo)\n\n cout << (foo<<=2) << endl; \/\/ 1100 (\u5de6\u79fb\uff12\u4f4d\uff0c\u4f4e\u4f4d\u8865\uff10\uff0c\u7531\u81ea\u8eab\u8d4b\u503c)\n cout << (foo>>=1) << endl; \/\/ 0110 (\u53f3\u79fb\uff11\u4f4d\uff0c\u9ad8\u4f4d\u8865\uff10\uff0c\u7531\u81ea\u8eab\u8d4b\u503c)\n\n cout << (~bar) << endl; \/\/ 1100 (\u6309\u4f4d\u53d6\u53cd)\n cout << (bar<<1) << endl; \/\/ 0110 (\u5de6\u79fb\uff0c\u4e0d\u8d4b\u503c)\n cout << (bar>>1) << endl; \/\/ 0001 (\u53f3\u79fb\uff0c\u4e0d\u8d4b\u503c)\n\n cout << (foo==bar) << endl; \/\/ false (0110==0011\u4e3afalse)\n cout << (foo!=bar) << endl; \/\/ true (0110!=0011\u4e3atrue)\n\n cout << (foo&bar) << endl; \/\/ 0010 (\u6309\u4f4d\u4e0e\uff0c\u4e0d\u8d4b\u503c)\n cout << (foo|bar) << endl; \/\/ 0111 (\u6309\u4f4d\u6216\uff0c\u4e0d\u8d4b\u503c)\n cout << (foo^bar) << endl; \/\/ 0101 (\u6309\u4f4d\u5f02\u6216\uff0c\u4e0d\u8d4b\u503c)<\/code><\/pre>\n\u6b64\u5916\uff0c\u53ef\u4ee5\u901a\u8fc7 [ ] \u8bbf\u95ee\u5143\u7d20(\u7c7b\u4f3c\u6570\u7ec4)\uff0c\u6ce8\u610f\u6700\u4f4e\u4f4d\u4e0b\u6807\u4e3a\uff10\uff0c\u5982\u4e0b\uff1a<\/p>\n
bitset<4> foo ("1011");\n \n cout << foo[0] << endl;\u3000\u3000\/\/1\n cout << foo[1] << endl;\u3000\u3000\/\/1\n cout << foo[2] << endl;\u3000\u3000\/\/0<\/code><\/pre>\n\u5f53\u7136\uff0c\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u5bf9\u67d0\u4e00\u4f4d\u5143\u7d20\u8d4b\u503c\u4e5f\u662f\u53ef\u4ee5\u7684\uff0c\u6817\u5b50\u5c31\u4e0d\u653e\u4e86\u3002<\/p>\n
\u53ef\u7528\u51fd\u6570<\/h3>\n
bitset\u8fd8\u652f\u6301\u4e00\u4e9b\u6709\u610f\u601d\u7684\u51fd\u6570\uff0c\u6bd4\u5982\uff1a<\/p>\n
bitset<8> foo ("10011011");\n\n cout << foo.count() << endl;\u3000\u3000\/\/5\u3000\u3000\uff08count\u51fd\u6570\u7528\u6765\u6c42bitset\u4e2d1\u7684\u4f4d\u6570\uff0cfoo\u4e2d\u5171\u6709\uff15\u4e2a\uff11\n cout << foo.size() << endl;\u3000\u3000 \/\/8\u3000\u3000\uff08size\u51fd\u6570\u7528\u6765\u6c42bitset\u7684\u5927\u5c0f\uff0c\u4e00\u5171\u6709\uff18\u4f4d\n\n cout << foo.test(0) << endl;\u3000\u3000\/\/true\u3000\u3000\uff08test\u51fd\u6570\u7528\u6765\u67e5\u4e0b\u6807\u5904\u7684\u5143\u7d20\u662f\uff10\u8fd8\u662f\uff11\uff0c\u5e76\u8fd4\u56defalse\u6216true\uff0c\u6b64\u5904foo[0]\u4e3a\uff11\uff0c\u8fd4\u56detrue\n cout << foo.test(2) << endl;\u3000\u3000\/\/false\u3000\u3000\uff08\u540c\u7406\uff0cfoo[2]\u4e3a\uff10\uff0c\u8fd4\u56defalse\n\n cout << foo.any() << endl;\u3000\u3000\/\/true\u3000\u3000\uff08any\u51fd\u6570\u68c0\u67e5bitset\u4e2d\u662f\u5426\u6709\uff11\n cout << foo.none() << endl;\u3000\u3000\/\/false\u3000\u3000\uff08none\u51fd\u6570\u68c0\u67e5bitset\u4e2d\u662f\u5426\u6ca1\u6709\uff11\n cout << foo.all() << endl;\u3000\u3000\/\/false\u3000\u3000\uff08all\u51fd\u6570\u68c0\u67e5bitset\u4e2d\u662f\u5168\u90e8\u4e3a\uff11\n <\/code><\/pre>\n\u8865\u5145\u8bf4\u660e\u4e00\u4e0b\uff1atest\u51fd\u6570\u4f1a\u5bf9\u4e0b\u6807\u8d8a\u754c\u4f5c\u51fa\u68c0\u67e5\uff0c\u800c\u901a\u8fc7 [ ] \u8bbf\u95ee\u5143\u7d20\u5374\u4e0d\u4f1a\u7ecf\u8fc7\u4e0b\u6807\u68c0\u67e5\uff0c\u6240\u4ee5\uff0c\u5728\u4e24\u79cd\u65b9\u5f0f\u901a\u7528\u7684\u60c5\u51b5\u4e0b\uff0c\u9009\u62e9test\u51fd\u6570\u66f4\u5b89\u5168\u4e00\u4e9b<\/p>\n
\u53e6\u5916\uff0c\u542b\u6709\u4e00\u4e9b\u51fd\u6570\uff1a<\/p>\n
\u3000<\/p>\n
bitset<8> foo ("10011011");\n\n cout << foo.flip(2) << endl;\u3000\u3000\/\/10011111\u3000\u3000\uff08flip\u51fd\u6570\u4f20\u53c2\u6570\u65f6\uff0c\u7528\u4e8e\u5c06\u53c2\u6570\u4f4d\u53d6\u53cd\uff0c\u672c\u884c\u4ee3\u7801\u5c06foo\u4e0b\u6807\uff12\u5904"\u53cd\u8f6c"\uff0c\u5373\uff10\u53d8\uff11\uff0c\uff11\u53d8\uff10\n cout << foo.flip() << endl;\u3000\u3000 \/\/01100000\u3000\u3000\uff08flip\u51fd\u6570\u4e0d\u6307\u5b9a\u53c2\u6570\u65f6\uff0c\u5c06bitset\u6bcf\u4e00\u4f4d\u5168\u90e8\u53d6\u53cd\n\n cout << foo.set() << endl;\u3000\u3000\u3000\u3000\/\/11111111\u3000\u3000\uff08set\u51fd\u6570\u4e0d\u6307\u5b9a\u53c2\u6570\u65f6\uff0c\u5c06bitset\u7684\u6bcf\u4e00\u4f4d\u5168\u90e8\u7f6e\u4e3a\uff11\n cout << foo.set(3,0) << endl;\u3000\u3000\/\/11110111\u3000\u3000\uff08set\u51fd\u6570\u6307\u5b9a\u4e24\u4f4d\u53c2\u6570\u65f6\uff0c\u5c06\u7b2c\u4e00\u53c2\u6570\u4f4d\u7684\u5143\u7d20\u7f6e\u4e3a\u7b2c\u4e8c\u53c2\u6570\u7684\u503c\uff0c\u672c\u884c\u5bf9foo\u7684\u64cd\u4f5c\u76f8\u5f53\u4e8efoo[3]=0\n cout << foo.set(3) << endl;\u3000\u3000 \/\/11111111\u3000\u3000\uff08set\u51fd\u6570\u53ea\u6709\u4e00\u4e2a\u53c2\u6570\u65f6\uff0c\u5c06\u53c2\u6570\u4e0b\u6807\u5904\u7f6e\u4e3a\uff11\n\n cout << foo.reset(4) << endl;\u3000\u3000\/\/11101111\u3000\u3000\uff08reset\u51fd\u6570\u4f20\u4e00\u4e2a\u53c2\u6570\u65f6\u5c06\u53c2\u6570\u4e0b\u6807\u5904\u7f6e\u4e3a\uff10\n cout << foo.reset() << endl;\u3000\u3000 \/\/00000000\u3000\u3000\uff08reset\u51fd\u6570\u4e0d\u4f20\u53c2\u6570\u65f6\u5c06bitset\u7684\u6bcf\u4e00\u4f4d\u5168\u90e8\u7f6e\u4e3a\uff10<\/code><\/pre>\n\u540c\u6837\uff0c\u5b83\u4eec\u4e5f\u90fd\u4f1a\u68c0\u67e5\u4e0b\u6807\u662f\u5426\u8d8a\u754c\uff0c\u5982\u679c\u8d8a\u754c\u5c31\u4f1a\u629b\u51fa\u5f02\u5e38<\/p>\n
\u6700\u540e\uff0c\u8fd8\u6709\u4e00\u4e9b\u7c7b\u578b\u8f6c\u6362\u7684\u51fd\u6570\uff0c\u5982\u4e0b\uff1a<\/p>\n
bitset<8> foo ("10011011");\n\n string s = foo.to_string();\u3000\u3000\/\/\u5c06bitset\u8f6c\u6362\u6210string\u7c7b\u578b\n unsigned long a = foo.to_ulong();\u3000\u3000\/\/\u5c06bitset\u8f6c\u6362\u6210unsigned long\u7c7b\u578b\n unsigned long long b = foo.to_ullong();\u3000\u3000\/\/\u5c06bitset\u8f6c\u6362\u6210unsigned long long\u7c7b\u578b\n\n cout << s << endl;\u3000\u3000\/\/10011011\n cout << a << endl;\u3000\u3000\/\/155\n cout << b << endl;\u3000\u3000\/\/155<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"C++\u7684 bitset \u5728 bitset \u5934\u6587\u4ef6\u4e2d\uff0c\u5b83\u662f\u4e00\u79cd\u7c7b\u4f3c\u6570\u7ec4\u7684\u7ed3\u6784\uff0c\u5b83\u7684\u6bcf\u4e00\u4e2a\u5143\u7d20\u53ea\u80fd\u662f\uff10\u6216\uff11\uff0c\u6bcf\u4e2a\u5143\u7d20\u4ec5\u7528\uff11bit\u7a7a\u95f4\u3002 \u4e0b\u9762\u662f\u5177\u4f53\u7528\u6cd5 \u6784\u9020\u51fd\u6570 bitset\u5e38\u7528\u6784\u9020\u51fd\u6570\u6709\u56db\u79cd\uff0c\u5982\u4e0b bitset<4> bitset1;\u3000\u3000\/\/\u65e0\u53c2\u6784\u9020\uff0c\u957f\u5ea6\u4e3a\uff14\uff0c\u9ed8\u8ba4\u6bcf\u4e00\u4f4d\u4e3a\uff10 bitset<8> bitset2(12);\u3000\u3000\/\/\u957f\u5ea6\u4e3a\uff18\uff0c\u4e8c\u8fdb\u5236\u4fdd\u5b58\uff0c\u524d\u9762\u7528\uff10\u8865\u5145 string s = "100101"; bitset<10> bitset3(s);\u3000\u3000\/\/\u957f\u5ea6\u4e3a10\uff0c\u524d\u9762\u7528\uff10\u8865\u5145 char s2[] = "10101"; bitset<13> bitset4(s2);\u3000\u3000\/\/\u957f\u5ea6\u4e3a13\uff0c\u524d\u9762\u7528\uff10\u8865\u5145 cout << bitset1 << endl;\u3000\u3000\/\/0000 cout << bitset2 << endl;\u3000\u3000\/\/00001100 cout << bitset3 << endl;\u3000\u3000\/\/0000100101 cout << bitset4 << endl;\u3000\u3000\/\/0000000010101 \u6ce8\u610f\uff1a \u7528\u5b57\u7b26\u4e32\u6784\u9020\u65f6\uff0c\u5b57\u7b26\u4e32\u53ea\u80fd\u5305\u542b '0' \u6216 '1' \uff0c\u5426\u5219\u4f1a\u629b\u51fa\u5f02\u5e38\u3002 \u6784\u9020\u65f6\uff0c\u9700\u5728<>\u4e2d\u8868\u660ebitset \u7684\u5927\u5c0f(\u5373size)\u3002 \u5728\u8fdb\u884c\u6709\u53c2\u6784\u9020\u65f6\uff0c\u82e5\u53c2\u6570\u7684\u4e8c\u8fdb\u5236\u8868\u793a\u6bd4bitset\u7684size\u5c0f\uff0c\u5219\u5728\u524d\u9762\u7528\uff10\u8865\u5145(\u5982\u4e0a\u9762\u7684\u6817\u5b50)\uff1b\u82e5\u6bd4bitsize\u5927\uff0c\u53c2\u6570\u4e3a\u6574\u6570\u65f6\u53d6\u540e\u9762\u90e8\u5206\uff0c\u53c2\u6570\u4e3a\u5b57\u7b26\u4e32\u65f6\u53d6\u524d\u9762\u90e8\u5206(\u5982\u4e0b\u9762\u6817\u5b50)\uff1a bitset<2> bitset1(12);\u3000\u3000\/\/12\u7684\u4e8c\u8fdb\u5236\u4e3a1100\uff08\u957f\u5ea6\u4e3a\uff14\uff09\uff0c\u4f46bitset1\u7684size=2\uff0c\u53ea\u53d6\u540e\u9762\u90e8\u5206\uff0c\u537300 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72],"tags":[],"class_list":["post-17","post","type-post","status-publish","format-standard","hentry","category-acm"],"_links":{"self":[{"href":"https:\/\/solost.cn\/index.php?rest_route=\/wp\/v2\/posts\/17","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/solost.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/solost.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/solost.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/solost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17"}],"version-history":[{"count":0,"href":"https:\/\/solost.cn\/index.php?rest_route=\/wp\/v2\/posts\/17\/revisions"}],"wp:attachment":[{"href":"https:\/\/solost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/solost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/solost.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}