\u5148\u7acb\u4e2aflag\uff0c \u4ece\u6b64\u4ee5\u540e\u6709\u4e09\u4e0d\u804a\uff1a\u4e0d\u804a\u653f\u6cbb\uff0c\u4e0d\u804a\u5b97\u6559\uff0c\u4e0d\u804a\u6559\u80b2\u5b69\u5b50\u3002\u8fd9\u4e09\u4e2a\u4e3b\u9898\u6709\u4e2a\u5171\u540c\u7684\u7279\u70b9\uff1a\u5927\u5bb6\u90fd\u6709\u81ea\u5df1\u7684\u89c2\u70b9\uff0c\u5927\u5bb6\u90fd\u8ba4\u4e3a\u81ea\u5df1\u7684\u89c2\u70b9\u5bf9\uff0c\u4f46\u662f\u5176\u5b9e\u8c01\u7684\u89c2\u70b9\u8fd8\u90fd\u6ca1\u5565\u7528\uff01\u800c\u4e14\u8fd9\u4e9b\u8bdd\u9898\u63d2\u5634\u7684\u95e8\u69db\u8fd8\u7279\u522b\u5e95\uff0c \u8fd9\u5c31\u662f\u4e3a\u5565\u5bb9\u6613\u5435\u5435\u8d77\u6765\u7684\u539f\u56e0\u4e86\u3002<\/p>\n\n\n\n
\u6240\u4ee5\u6211\u51b3\u5b9a\u804a\u70b9C++\u8bed\u8a00\uff0c\u4e0d\u597d\u610f\u601d\uff0c\u8fd9\u4e2a\u70ed\u5fc3\u7f51\u53cb\u60f3\u63d2\u5634\u8fd8\u4e0d\u592a\u5bb9\u6613\u3002 \u4eca\u5929\u4e3b\u8981\u804a\u804a\u6211\u6700\u8fd1\u53d1\u73b0\u7684C++\u7684\u4e00\u4e2a\u73b0\u8c61\uff1a\u90a3\u5c31\u662f\u6a21\u677f\u770b\u8d77\u6765\u5f88\u96be\uff0c \u5176\u5b9e\u4e0d\u96be\uff1b \u5f02\u5e38\u770b\u8d77\u6765\u5f88\u7b80\u5355\uff0c\u5176\u5b9e\u5f88\u96be\uff1b\u591a\u7ebf\u7a0b\u770b\u8d77\u6765\u5f88\u96be\uff0c\u5176\u5b9eTMD\u66f4\u96be\u3002<\/p>\n\n\n\n
\u9996\u5148\u804a\u6a21\u677f\uff0ctalk is cheap\uff0cshow me the code\u3002\u4e0b\u9762\u8fd9\u6bb5\u773c\u82b1\u7f2d\u4e71\u7684\u4ee3\u7801\u8981\u662f\u8bfb\u61c2\u8fd8\u771f\u4e0d\u5bb9\u6613\uff0c\u4e0d\u8fc7\u4ed6\u96be\u5c31\u96be\u5728\u4e86\u8bed\u6cd5\u4e0a\uff0c\u5176\u5b9e\u5c31\u662f\u5229\u7528\u7f16\u8bd1\u671f\u95f4\uff0c\u6a21\u677f\u5b9e\u4f8b\u5316\u7684\u65f6\u5019\u7684SFINAE\u7279\u70b9\uff0c\u6765\u5224\u5b9a\u4e00\u4e2a\u7c7b\u662f\u5426\u6709serialize\u8fd9\u4e2a\u51fd\u6570\u3002\u5c31\u8fd9\u4e48\u7b80\u5355\u3002\u6211\u77e5\u9053\u4f60\u60f3\u9a82\u4eba\u4e86\uff0c\u597d\u7aef\u7aef\u7684\u4f60\u5c31\u76f4\u63a5\u8bf4\u4e2d\u6587\u5c31\u597d\uff0c\u4e3a\u5565\u603b\u62fd\u6d0b\u6587\u5462\uff1f \u56e0\u4e3a\u8fd9\u4e2a\u8bcd\u4e00\u65e6\u7ffb\u8bd1\u6210\u4e2d\u6587\uff0c\u4f60\u8981\u662f\u770b\u5230\u4e86\u5c31\u60f3\u6253\u4eba\u4e86\u3002 \u8fd9\u4e2a\u5355\u8bcd\u5c31\u662f\u201c\u66ff\u6362\u5931\u8d25\u4e0d\u662f\u9519\u8bef\u201d\u8fd9\u51e0\u4e2a\u8bcd\u7684\u9996\u5b57\u6bcd\u7f29\u5199\u3002\u4e0d\u77e5\u9053\u4f60\u600e\u4e48\u60f3\uff0c\u6211\u4e2a\u4eba\u89c9\u5f97\uff0c\u540c\u6837\u662f\u4e0d\u61c2\uff0c\u4f46\u662f\u82f1\u6587\u8bf4\u51fa\u6765\u66f4\u725b\u903c\u4e00\u70b9\uff0c\u662f\u4e0d\uff1f<\/p>\n\n\n\n
std::cout << hasSerialize::value << std::endl;<\/a><\/p>\n\n\n\n \u81f3\u4e8e\u8bed\u6cd5\u4e0a\u82b1\u4e86\u547c\u54e8\u7684\uff0c\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u4e60\u60ef\u7684\u95ee\u9898\uff0c\u4e00\u65e6\u4f60\u4e60\u60ef\u4e86\u8fd9\u79cd\u8bed\u6cd5\uff0c\u4f60\u518d\u770bhello world\u5565\u7684\u8fd8\u89c9\u5f97\u522b\u626d\u5462\uff01 \u597d\u4e86\u603b\u7ed3\u4e00\u4e0b\uff0c\u6a21\u677f\u7f16\u7a0b\u5927\u90e8\u5206\u90fd\u662f\u8bed\u6cd5\u4e0a\u53e0\u5c4b\u67b6\u5e8a\u7684\uff0c\u5176\u5b9e\u8bed\u4e49\u5c42\u9762\u76f8\u5f53\u76f4\u63a5\u548c\u7b80\u5355\u3002\u6293\u4f4f\u4e86\u8bed\u4e49\uff0c\u90a3\u5c31\u662f\u4e00\u62f3\u5230\u8089\u3002\u81f3\u4e8e\u8bed\u6cd5\u5f00\u59cb\u9ebb\u70e6\u70b9\uff0c\u5927\u4e0d\u4e86\u9762\u5411stack overflow\u7f16\u7a0b\u5c31\u597d\u3002\u5bf9\u4e86\u63d0\u9192\u4e00\u4e0b\uff0c\u4e00\u822cstack overflow\u4e0a\u5206\u4e3a\u63d0\u95ee\u533a\u548c\u89e3\u7b54\u533a\uff0c\u6284\u4ee3\u7801\u7684\u65f6\u5019\u4e00\u5b9a\u8981\u4ece\u89e3\u7b54\u533acopy! \u770b\u770b\uff0c\u8fd9\u5c31\u662f\u4e00\u62f3\u5230\u8089\uff01<\/p>\n\n\n\n \u804a\u5b8c\u4e86\u6a21\u677f\uff0c\u73b0\u5728\u804a\u804a\u5f02\u5e38\uff0c\u4ecb\u7ecdC++\u5f02\u5e38\u7684\u65f6\u5019\u901a\u5e38\u90fd\u4f1a\u63d0\u5230\u4e00\u4e2a\u5c0f\u51fd\u6570\uff0c\u8fd9\u4e2a\u51fd\u6570\u5c31\u662fassert\u3002\u8fd9\u4e2a\u51fd\u6570\u7b80\u5355\u7684\u4e0d\u5f97\u4e86\uff0c\u5c31\u662f\u8f93\u5165\u4e00\u4e2a\u5224\u65adbool\u7684\u8868\u8fbe\u5f0f\uff0c\u5982\u679c\u8868\u8fbe\u5f0f\u4e3afalse, \u90a3\u4e48assert\u5c31\u7ec8\u6b62\u6574\u4e2a\u7a0b\u5e8f\u3002\u597d\u5427\uff0c\u4e0a\u4ee3\u7801\uff1a \u5c31\u8fd9\u4e48\u7b80\u5355\u5417\uff1f\u5bf9\uff0c\u5c31\u8fd9\u4e48\u7b80\u5355\u3002\u90a3\u4e48\u4e0b\u4e00\u4e2a\u95ee\u9898\u5c31\u6765\u4e86\uff0c\u5224\u65ad\u8868\u8fbe\u5f0f\u5224\u65ad\u5565\uff1f\uff0cassert\u8be5\u5728\u54ea\u91cc\u7528\u5462\uff1f\u55ef~~\uff0c \u8fd9\u4e2adepends\u3002<\/p>\n\n\n\n \u6211\u77e5\u9053\u4f60\u53c8\u60f3\u6253\u4eba\u4e86\uff0c\u521a\u521a\u660e\u767d\u4e86\u4e0a\u9762\u6bd4\u8f83\u590d\u6742\u7684\u8bed\u6cd5\uff0c\u73b0\u5728\u597d\u4e0d\u5bb9\u6613\u9047\u5230\u4e00\u4e2a\u7b80\u5355\u7684\uff0c\u5c31\u662f\u60f3\u77e5\u9053\u5728\u54ea\u91cc\u7528\uff0c\u4f60\u8fd8\u8bf4depends\u3002\u8fd9\u79cd\u611f\u89c9\u5c31\u50cf\u4f60\u628a500\u5757\u94b1\u521a\u7ed9\u4e86\u5927\u8857\u4e0a\u4e00\u4f4d\u5411\u4f60\u62db\u624b\u7684\u5973\u5b69\uff0c\u5973\u5b69\u6536\u4e0b\u94b1\u540e\u9a6c\u4e0a\u5bf9\u4f60\u8bf4\u4f60\u662f\u4e00\u4e2a\u597d\u4eba\u3002\u8fd9\u5c31\u662f\u4e00\u79cd\u60f3\u6253\u4eba\u7684\u611f\u89c9\u3002 \u597d\u5427\uff0c\u6211\u6362\u4e00\u79cd\u8bf4\u6cd5\uff0cassert\u5c31\u662f\u7528\u6765\u9a8c\u8bc1\u662f\u5426\u8fdd\u80cc\u4e86\uff08invariant\uff09\u4e0d\u53d8\u6027\u7684\u65f6\u5019\u7528\u7684\u3002\u4f60\u73b0\u5728\u611f\u89c9\u597d\u70b9\u4e86\u5417\uff1f OK\uff0c\u90a3\u4e48\u4ec0\u4e48\u53c8\u662f\uff08invariant\uff09\u4e0d\u53d8\u6027\u5462\uff1f \u4e3e\u4e2a\u4f8b\u5b50\u5427\uff0c\u4f60\u4eca\u5e7420\uff0c\u518d\u8fc7\u4e00\u5e74\u4f6021\uff0c\u4f60\u9075\u5b88\u4e86\uff08invariant\uff09\u4e0d\u53d8\u6027\uff0c\u5982\u679c\u4f60\u4eca\u5e7420\uff0c\u8fc7\u4e00\u5e74\u4f60\u8fd8\u662f20\uff0c\u90a3\u4e48\u4f60\u7834\u574f\u4e86\uff08invariant\uff09\u4e0d\u53d8\u6027\u3002\u6765\u5427\uff0c\u6253\u6211\u554a\uff01<\/p>\n\n\n\n \u6ca1\u9519\uff0c\u4f60\u6ca1\u770b\u9519\uff0c\uff08invariant\uff09\u4e0d\u53d8\u6027\u5176\u5b9e\u662f\u4e00\u4e2a\u66f4\u5927\u7684\u6982\u5ff5\uff0c\u5b83\u5c31\u662f\u6307\u7a0b\u5e8f\u5728\u8bed\u4e49\u4e0a\u9762\u662f\u6b63\u786e\u7684\uff0c\u8fc7\u4e86\u4e00\u5e74\u957f\u4e00\u5c81\uff0c\u8fd9\u4e2a\u5728\u903b\u8f91\u8bed\u4e49\u4e0a\u662f\u5bf9\u7684\u3002 \u6216\u8005\u5728\u4e00\u4e2a\u66f4\u5927\u7684\u8303\u56f4\u5185\u662f\u6b63\u786e\u5e76\u4e14\u7a33\u5b9a\u7684\u3002\u4f8b\u5982\uff0c\u738b\u5065\u6797\u4e3a\u4e86\u8ba9\u4f60\u5b8c\u6210\u4e00\u4e2a\u5c0f\u76ee\u6807\uff0c\u7ed9\u4f60\u8f6c\u4e86\u4e00\u4e2a\u4ebf\u3002 \u5728\u738b\u5065\u6797\u7684\u94b1\u79bb\u5f00\u4ed6\u7684\u8d26\u53f7\uff0c\u4f46\u662f\u8fd8\u6ca1\u5230\u4f60\u7684\u8d26\u53f7\u7684\u65f6\u5019\uff0c\u4f60\u4eec\u4e4b\u95f4\u7684\uff08invariant\uff09\u4e0d\u53d8\u6027\u5c31\u88ab\u6253\u7834\u4e86\uff0c\u76f4\u5230\u94b1\u8f6c\u5230\u4f60\u7684\u8d26\u53f7\u4e0a\uff0c\u4f60\u4eec\u4e4b\u95f4\u7684\uff08invariant\uff09\u4e0d\u53d8\u6027\u5c31\u53c8\u6062\u590d\u4e86\u3002\u4e0d\u53d8\u6027\u5e76\u4e0d\u662f\u6307\u7684\u201c\u4e0d\u53d8\u6027\u201d\u3002\u9a8c\u8bc1\u8fd9\u79cd\uff08invariant\uff09\u4e0d\u53d8\u6027\u5176\u5b9e\u662f\u5bf9\u7f16\u7a0b\u4ee5\u5916\u7684\u9886\u57df\u77e5\u8bc6\u8981\u975e\u5e38\u4e86\u89e3\u7684\u3002\u4f8b\u5982\uff1a\u5bf9\u4e00\u4e2a\u4eba\u5458\u7ba1\u7406\u7cfb\u7edf\uff0c\u4f60\u5e94\u8be5\u7528\u4e0b\u9762\u7684assert\u8bed\u53e5\u3002\u95ee\u9898\u662f\uff0c\u4f60\u771f\u7684\u786e\u5b9a100\u662f\u6b63\u786e\u7684\u5417\uff1f\u4f60\u5bf9\u5168\u4e16\u754c\u4eba\u53e3\u7684\u6781\u5927\u503c\u4e86\u89e3\u5417\uff1f \u54ea\u91cc\u4f1a\u7834\u574f\uff08invariant\uff09\u4e0d\u53d8\u6027\u5462\uff0c\u8fd9\u4e2a\u5728\u591a\u7ebf\u7a0b\u91cc\u9762\u6700\u591a\u4e86\u3002\u4f8b\u5982\u5982\u679c\u6211\u4eec\u6709\u4e24\u4e2a\u7ebf\u7a0b\u5206\u522b\u8ba1\u7b97\u4f60\u7684\u5c81\u6570\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u628a\u4f60\u7684\u5e74\u9f84\u52a0\u4e0a0.5\uff0c\u8fd9\u4e2a\u65f6\u5019\u5982\u679c\u540c\u6b65\u7684\u4e0d\u5bf9\uff0c\u5c31\u4f1a\u53d1\u751fdata race\u3002\u4f8b\u5982\u4e00\u4e2a\u7ebf\u7a0b\u8bfb\u516520\uff0c\u52a0\u4e0a0.5\u540e\uff0c\u8fd8\u6ca1\u5199\u5165\u5230\u5185\u5b58\u7684\u65f6\u5019\uff0c\u53e6\u5916\u4e00\u4e2a\u7ebf\u7a0b\u5207\u5165\uff0c\u8bfb\u516520\uff0c\u52a0\u4e0a0.5\u540e\uff0c\u5199\u56de\u5230\u5185\u5b58\u3002\u8fd9\u4e2a\u65f6\u5019\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u518d\u6b21\u56de\u5f52\uff0c\u628a\u81ea\u5df1\u8ba1\u7b97\u5f97\u5230\u768420.5\u518d\u5199\u4e00\u904d\u5185\u5b58\u3002\u6700\u540e\u4e24\u4e2a\u7ebf\u7a0b\u7ed3\u675f\u540e\uff0c\u5185\u5b58\u91cc\u4fdd\u5b58\u7684\u5c31\u662f20.5\uff0c\u800c\u4e0d\u662f21\u4e86\u3002\u8fd9\u4e2a\u65f6\u5019\u4f60\u5df2\u7ecf\u8fdd\u80cc\u4e86\uff08invariant\uff09\u4e0d\u53d8\u6027\u4e86\u3002<\/p>\n\n\n\n \u9664\u4e86\u5bb9\u6613\u53d1\u751f\u8fdd\u80cc\u4e86\uff08invariant\uff09\u4e0d\u53d8\u6027\u4ee5\u5916\uff0c\u591a\u7ebf\u7a0b\u53e6\u5916\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u8bed\u6cd5\u548c\u8bed\u4e49\u90fd\u5f88\u96be\uff0c\u5927\u91cf\u7684\u6a21\u677f\u63a8\u9ad8\u4e86\u4f7f\u7528\u7ebf\u7a0b\u7684\u8bed\u6cd5\u7684\u96be\u5ea6\u3002\u8bed\u4e49\u4e0a\uff0c\u54ea\u6015\u4e00\u4e2a\u7b80\u5355\u7684\u9501\uff0c\u4ec0\u4e48\u65f6\u5019\u7528\uff1f\u54ea\u91cc\u7528\uff1f\u7528\u4e0d\u7528\uff1f\u901a\u901adepends\u3002 \u539f\u5b50\u7f16\u7a0b\u7684\u5185\u5b58\u6a21\u578b\u53c8\u628a\u8bed\u4e49\u65b9\u9762\u7684\u77e5\u8bc6\u63a8\u5230\u4e86CPU\u7684instrument\u90a3\u4e2a\u5c42\u6b21\u4e0a\u53bb\u4e86\u3002<\/p>\n\n\n\n \u4e0a\u9762\u8bf4\u5230\u591a\u7ebf\u7a0b\u975e\u5e38\u5bb9\u6613\u7834\u574f\u6570\u636e\u7684\uff08invariant\uff09\u4e0d\u53d8\u6027\uff0c\u9996\u5148\u8fd9\u79cd\u7834\u574f\u901a\u5e38\u5f88\u96be\u8c03\u8bd5\uff0c\u56e0\u4e3a\u4ed6\u4eec\u5e76\u4e0d\u662f\u6bcf\u6b21\u590d\u73b0\u3002\u53e6\u5916\u7834\u574f\u6570\u636e\u7684\uff08invariant\uff09\u4e0d\u53d8\u6027\u8fd8\u6709\u4e00\u4e2a\u66f4\u7cdf\u7cd5\u7684\u7ed3\u679c\uff0c\u90a3\u5c31\u662f\u7a0b\u5e8f\u7684\u884c\u4e3a\u201c\u672a\u5b9a\u4e49\u201d\u3002<\/p>\n\n\n\n C++\u65b0\u624b\u770b\u5230\u201c\u672a\u5b9a\u4e49\u201d\u8fd9\u4e00\u4e2a\u8bcd\u901a\u5e38\u4f1a\u6709\u4e00\u79cd\u4e50\u89c2\u7684\u60c5\u7eea\u3002\u4ed6\u4eec\u521a\u88ab\u201c\u9762\u5411\u5bf9\u8c61\u201d\u7cca\u5f04\u5230\u7f16\u7a0b\u8fd9\u4e2a\u9886\u57df\uff0c\u65e2\u7136\u662f\u201c\u672a\u5b9a\u4e49\u201d\uff0c\u90a3\u4e48\u4e5f\u8bb8\u662f\u201c\u6d1e\u623f\u82b1\u70db\u591c\u201d\u4e5f\u4fdd\u4e0d\u9f50\u3002\u4e00\u822cC++\u8001\u624b\u4f1a\u544a\u8beb\u65b0\u624b\uff0c\u672a\u5b9a\u4e49\u901a\u5e38\u662f\u201c\u6d1e\u623f\u82b1\u70db\u591c-\u4e0d\u4e3e\u201d\u3002\u800c10\u5e74\u4ee5\u4e0a\u7684\u8001\u9e1f\u4f1a\u8bf4\uff1a\u672a\u5b9a\u4e49\u901a\u5e38\u662f\u201c\u6d1e\u623f\u82b1\u70db\u591c-\u65b0\u5a18\u4e0d\u4e3e\u201d\u300220\u5e74\u4ee5\u4e0a\u7684\u9aa8\u7070\u8fd9\u4e2a\u65f6\u5019\u4e00\u822c\u662f\u4e0d\u8bf4\u8bdd\u7684\uff0c\u4ed6\u4eec\u4e00\u822c45\u5ea6\u659c\u5934\u4e0a\u671b\uff0c\u773c\u775b\u91cc\u7559\u4e0b\u4e24\u884c\u6d4a\u6cea\uff0c\u5634\u91cc\u561f\u56d4\u7740\uff1a\u201c\u90a3\u4e00\u5e74\uff0c\u6211\u6d1e\u623f\u82b1\u70db\u591c-\u65b0\u5a18\u5f88\u4e3e\u201d\u3002<\/p>\n\n\n\n \u5e0c\u671b\u4f60\u4eec\u80fd\u901a\u8fc7\u8fd9\u4e2a\u6545\u4e8b\u8bb0\u4f4f\u201c\u672a\u5b9a\u4e49\u201d\u8fd9\u4e2a\u8bcd\u3002\u5bf9\u8fd9\u4e2a\u8bcd\u5230\u5e95\u6709\u591a\u574f\u4e00\u5b9a\u8981\u6709\u5145\u8db3\u7684\u60f3\u8c61\u529b\u3002\u8bf4\u7b80\u5355\u70b9\uff0c\u6807\u51c6\u59d4\u5458\u4f1a\u4e5f\u4e0d\u77e5\u9053\u67d0\u4e9b\u884c\u4e3a\u4f1a\u574f\u5230\u4ec0\u4e48\u7a0b\u5ea6\uff0c\u90a3\u5c31\u53eb\u505a\u201c\u672a\u5b9a\u4e49\u201d\u5427\u3002\u5c31\u50cf\u4e00\u4e2a\u4eba\u957f\u7684\u4e11\u5f97\u4ed6\u5988\u90fd\u4e0d\u613f\u610f\u770b\uff0c\u90a3\u4e48\u8fd9\u79cd\u4e11\u5c31\u53eb\u505a\u201c\u672a\u5b9a\u4e49\u201d\u3002<\/p>\n\n\n\n \u603b\u7ed3\u4e00\u4e0b\uff1a \u5148\u7acb\u4e2aflag\uff0c \u4ece\u6b64\u4ee5\u540e\u6709\u4e09\u4e0d\u804a\uff1a\u4e0d\u804a\u653f\u6cbb\uff0c\u4e0d\u804a\u5b97\u6559\uff0c\u4e0d\u804a\u6559\u80b2\u5b69\u5b50\u3002\u8fd9\u4e09\u4e2a\u4e3b\u9898\u6709\u4e2a\u5171\u540c\u7684\u7279\u70b9\uff1a\u5927\u5bb6\u90fd\u6709\u81ea\u5df1\u7684\u89c2\u70b9\uff0c\u5927\u5bb6\u90fd\u8ba4\u4e3a\u81ea\u5df1\u7684\u89c2\u70b9\u5bf9\uff0c\u4f46\u662f\u5176\u5b9e\u8c01\u7684\u89c2\u70b9\u8fd8\u90fd\u6ca1\u5565\u7528\uff01\u800c\u4e14\u8fd9\u4e9b\u8bdd\u9898\u63d2\u5634\u7684\u95e8\u69db\u8fd8\u7279\u522b\u5e95\uff0c \u8fd9\u5c31\u662f\u4e3a\u5565\u5bb9\u6613\u5435\u5435\u8d77\u6765\u7684\u539f\u56e0\u4e86\u3002 \u6240\u4ee5\u6211\u51b3\u5b9a\u804a\u70b9C++\u8bed\u8a00\uff0c\u4e0d\u597d\u610f\u601d\uff0c\u8fd9\u4e2a\u70ed\u5fc3\u7f51\u53cb\u60f3\u63d2\u5634\u8fd8\u4e0d\u592a\u5bb9\u6613\u3002 \u4eca\u5929\u4e3b\u8981\u804a\u804a\u6211\u6700\u8fd1\u53d1\u73b0\u7684C++\u7684\u4e00\u4e2a\u73b0\u8c61\uff1a\u90a3\u5c31\u662f\u6a21\u677f\u770b\u8d77\u6765\u5f88\u96be\uff0c \u5176\u5b9e\u4e0d\u96be\uff1b \u5f02\u5e38\u770b\u8d77\u6765\u5f88\u7b80\u5355\uff0c\u5176\u5b9e\u5f88\u96be\uff1b\u591a\u7ebf\u7a0b\u770b\u8d77\u6765\u5f88\u96be\uff0c\u5176\u5b9eTMD\u66f4\u96be\u3002 \u9996\u5148\u804a\u6a21\u677f\uff0ctalk is cheap\uff0cshow me the code\u3002\u4e0b\u9762\u8fd9\u6bb5\u773c\u82b1\u7f2d\u4e71\u7684\u4ee3\u7801\u8981\u662f\u8bfb\u61c2\u8fd8\u771f\u4e0d\u5bb9\u6613\uff0c\u4e0d\u8fc7\u4ed6\u96be\u5c31\u96be\u5728\u4e86\u8bed\u6cd5\u4e0a\uff0c\u5176\u5b9e\u5c31\u662f\u5229\u7528\u7f16\u8bd1\u671f\u95f4\uff0c\u6a21\u677f\u5b9e\u4f8b\u5316\u7684\u65f6\u5019\u7684SFINAE\u7279\u70b9\uff0c\u6765\u5224\u5b9a\u4e00\u4e2a\u7c7b\u662f\u5426\u6709serialize\u8fd9\u4e2a\u51fd\u6570\u3002\u5c31\u8fd9\u4e48\u7b80\u5355\u3002\u6211\u77e5\u9053\u4f60\u60f3\u9a82\u4eba\u4e86\uff0c\u597d\u7aef\u7aef\u7684\u4f60\u5c31\u76f4\u63a5\u8bf4\u4e2d\u6587\u5c31\u597d\uff0c\u4e3a\u5565\u603b\u62fd\u6d0b\u6587\u5462\uff1f \u56e0\u4e3a\u8fd9\u4e2a\u8bcd\u4e00\u65e6\u7ffb\u8bd1\u6210\u4e2d\u6587\uff0c\u4f60\u8981\u662f\u770b\u5230\u4e86\u5c31\u60f3\u6253\u4eba\u4e86\u3002 \u8fd9\u4e2a\u5355\u8bcd\u5c31\u662f\u201c\u66ff\u6362\u5931\u8d25\u4e0d\u662f\u9519\u8bef\u201d\u8fd9\u51e0\u4e2a\u8bcd\u7684\u9996\u5b57\u6bcd\u7f29\u5199\u3002\u4e0d\u77e5\u9053\u4f60\u600e\u4e48\u60f3\uff0c\u6211\u4e2a\u4eba\u89c9\u5f97\uff0c\u540c\u6837\u662f\u4e0d\u61c2\uff0c\u4f46\u662f\u82f1\u6587\u8bf4\u51fa\u6765\u66f4\u725b\u903c\u4e00\u70b9\uff0c\u662f\u4e0d\uff1f template struct hasSerialize{typedef char yes[1];typedef yes no[2];template struct reallyHas;template static yes& test(reallyHas* \/unused\/) { }template static no& test(\u2026) { \/* dark matter *\/ }static const bool value = sizeof(test(0)) == sizeof(yes);}; std::cout << hasSerialize::value << std::endl; \u81f3\u4e8e\u8bed\u6cd5\u4e0a\u82b1\u4e86\u547c\u54e8\u7684\uff0c\u5176\u5b9e\u5c31\u662f\u4e00\u4e2a\u4e60\u60ef\u7684\u95ee\u9898\uff0c\u4e00\u65e6\u4f60\u4e60\u60ef\u4e86\u8fd9\u79cd\u8bed\u6cd5\uff0c\u4f60\u518d\u770bhello world\u5565\u7684\u8fd8\u89c9\u5f97\u522b\u626d\u5462\uff01 \u597d\u4e86\u603b\u7ed3\u4e00\u4e0b\uff0c\u6a21\u677f\u7f16\u7a0b\u5927\u90e8\u5206\u90fd\u662f\u8bed\u6cd5\u4e0a\u53e0\u5c4b\u67b6\u5e8a\u7684\uff0c\u5176\u5b9e\u8bed\u4e49\u5c42\u9762\u76f8\u5f53\u76f4\u63a5\u548c\u7b80\u5355\u3002\u6293\u4f4f\u4e86\u8bed\u4e49\uff0c\u90a3\u5c31\u662f\u4e00\u62f3\u5230\u8089\u3002\u81f3\u4e8e\u8bed\u6cd5\u5f00\u59cb\u9ebb\u70e6\u70b9\uff0c\u5927\u4e0d\u4e86\u9762\u5411stack overflow\u7f16\u7a0b\u5c31\u597d\u3002\u5bf9\u4e86\u63d0\u9192\u4e00\u4e0b\uff0c\u4e00\u822cstack … Continue reading “C++\u4e2d\u7684\u672a\u5b9a\u4e49\u548cdepends”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-307","post","type-post","status-publish","format-standard","hentry","category-cc"],"_links":{"self":[{"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/posts\/307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=307"}],"version-history":[{"count":1,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/posts\/307\/revisions"}],"predecessor-version":[{"id":308,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/posts\/307\/revisions\/308"}],"wp:attachment":[{"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=307"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zhaoyan.website\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
template struct hasSerialize{
typedef char yes[1];
typedef yes no[2];
template struct reallyHas;
template static yes& test(reallyHas* \/unused<\/em>\/) { }
template static no& test(\u2026) { \/* dark matter *\/ }
static const bool value = sizeof(test(0)) == sizeof(yes);
};<\/p>\n\n\n\n
assert(2+2==4);<\/p>\n\n\n\n
assert(age>0)
assert(age<100),<\/p>\n\n\n\n
1\uff09\u6a21\u677f\u5728\u552c\u4eba\u7684\u8bed\u6cd5\u4e0b\u9762\u5176\u5b9e\u633a\u7b80\u5355\u7684\uff0c\u7406\u89e3\u4e86\u5b83\u5230\u5e95\u8981\u5e72\u4ec0\u4e48\uff0c\u90a3\u5c31\u4e00\u62f3\u5230\u8089\u4e86\u3002
2\uff09\u9047\u5230depends\u7684\u65f6\u5019\uff0c\u901a\u5e38\u610f\u5473\u7740\u4f60\u9700\u8981\u66f4\u6df1\u5165\u7684\u9886\u57df\u77e5\u8bc6\u4e86\u3002
3\uff09\u80fd\u4e0d\u7528\u591a\u7ebf\u7a0b\u5c31\u4e0d\u7528\uff0c\u5fc5\u987b\u8981\u7528\u5c31\u7528\u6210\u719f\u7684\u7ebf\u7a0b\u5e93\u548c\u6a21\u578b\uff0c\u4f8b\u5982boost\u7ebf\u7a0b\u6c60\u5e93\uff0c\u751f\u4ea7\u8005-\u6d88\u8d39\u8005\u6a21\u578b\uff0c\u6d88\u606f\u4f20\u9012\u6a21\u578b\u7b49\u3002
4\uff09\u5982\u679c\u4f60\u5bf9\u201c\u672a\u5b9a\u4e49\u201d\u8fd9\u4e2a\u8bcd\u611f\u89e6\u4e0d\u6df1\uff0c\u90a3\u4e48\u8bf4\u660e\u4f60\u8fd8\u6ca1\u5230\u201c\u90a3\u4e00\u5e74\u2026\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"