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::tr1::shared_ptrError when manually releasing resources, recommended class ExplicitDo not persist in single statement, for RAII reason:The time order in which a function parameter is created between C + + is based on efficiency,std::tr1::shared_ptrIf the order is as followsNewTestshared_ptr to pass the argument.Test error then shared_ptr naturally blew up. Resource leaks.Try to replace Pass-by-value with Pass-by-reference-to-constStatic object Design (threat), multithreading security?It is diff

Reverse basic Finding important/interesting stuff in the code (2) zing Chapter 2 Call assert Sometimes, the emergence of assert () macro is also useful: Usually this macro will leak the source file name, row number and condition. The most useful information is included in the assert condition, from which we can infer the variable name or struct name. Another useful information is the file name. We can infer the type of code used. It is also possible t

Reverse basic Finding important/interesting stuff in the code (1) V. Search for interesting or important parts of the Code In modern software design, minimalism is not particularly important. It is not because programmers write a lot of code, but because many libraries are usually statically linked to executable files. If all the external libraries are moved into the external DLL file, the situation will be different. (Another reason why C ++ uses ST

infinite expansion. The Daji class not only increases the difficulty of the group members ' understanding of the code, but also increases the difficulty of troubleshooting when problems arise. In this respect, the Uiviewcontroller base class design is extremely unsuccessful: Mmuiviewcontroller. Provides easy-to-use tool classes. Some easy-to-use tools often become an integral part of the framework, solving local problems quickly and easily without introducing too much complexity. Nstimer's re

Quick-x Data Encryption I. Data Encryption As long as quick encapsulation is used Local crypto = require ("framework. crypto") -- algorithm encryption and decryption To make Function crypto. encryptxxtea (plaintext, key)Plaintext = tostring (plaintext)Key = tostring (key)Return cccrypto: encryptxxtea (plaintext, String. Len (plaintext), key, String. Len (key ))End This is something in the framework. If you are interested, take a look. Here, my encrypted data is decrypted, read, and encrypte

If exists (select * From DBO. sysobjects where id = object_id (n' [DBO]. [p_stuff] ') and objectproperty (ID, n' isprocedure') = 1)Drop procedure [DBO]. [p_stuff]Go /* -- Ntext Field Processing Simulate the string processing function stuffComplete the stuff processing of the ntext field in the tableNote: The table must have the primary key (or ID field) with the column name ID, and the data type is int.If this primary key field does not exist or is of

forwards it to the Br-vlan bridge. Br-vlan This bridge will put a real tag on the packet and send it to the corresponding Br-vlan Bridge of the other compute node. The bag will be sent to Br-vlan on this bridge.On the same node2 there is also a QBR bridge in charge of the flow of incoming and out. If this is allow then the packet is sent to the vm2.In fact, when our OpenStack platform deployment is complete, Br-vlan and Br-int have been created below to see a few configuration filesNetwork node

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operators, how to generate an operator after the answer to the operator, and later on the internet found that the Python function library has this function, as long as the easy to call it. Later did not know how to generate documents, and later on the Internet to check a bit, and found that the function is called. And so the two of them did it slowly. PSP TablePerformance analysisThe algorithm runs slowly, does not use the data structure to optimize, uses the library function extensively,

expect the demand will have random read operations, then can only use std::advance to get good use of STL algorithm, if you encounter STL data processing first see there is no corresponding STL algorithm because the STL code can be very long, all can build a file to put the global macro definition, similar to QtGlobal file . Do not skip to assign tasks, otherwise you will let subordinates do only the upper level of things The excessive publicity of personal responsibility and punishm