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使用std::string作为std::map的key出错解决 - C/C++ - 清泛网 - 专注C/C++及内核技术
...gram files (x86) microsoft visual studio 11.0 vc include xstddef(180): error C2784: bool std::operator <(const st...c:\program files (x86)\microsoft visual studio 11.0\vc\include\xstddef(180): error C2784: “bool std::operator <(const std::_Tree<_Traits> &,const std::_Tree<_Traits> &)”: 未...
Are braces necessary in one-line statements in JavaScript?
...ice to always use the braces {}. As @Arx said, there's a lot more room for error if you leave them out. Apple even had a bug in iOS's SSL/TLS because they didn't use braces
– Keenan Lidral-Porter
Jan 6 '15 at 19:56
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How to print out a variable in makefile
...so pointed by 'bobbogo' in the below answer,
you can use info / warning / error to display text.
$(error text…)
$(warning text…)
$(info text…)
To print variables,
$(error VAR is $(VAR))
$(warning VAR is $(VAR))
$(info VAR is $(VAR))
'error' would stop the make execution, after...
Uncaught Error: SECURITY_ERR: DOM Exception 18 when I try to set a cookie
I get the following error in Chrome's developer tools window when I try to set a cookie using this jQuery plugin:
9 Answe...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
... --skip-grant-tables". After I do the second command, i get the following error: "InnoDB: Unable to lock ./ibdata1, error: 11". I can't find this ./ibdata1 file... InnoDB: Check that you do not already have another mysqld process
– dot
Aug 16 '12 at 18:24
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Qt: can't find -lGL error
...
@Cuadue: The GL in the error and in libgl1-... is for OpenGL, a fundamental dependency of Qt 5.x. This is a common error for devs when setting up for Qt development -- but once they install the OpenGL development lib they never see it again.
...
How do I syntax check a Bash script without running it?
... to add to the (for me) non obvious caveat, it also won't catch an error caused by a missing space if ["$var" == "string" ] instead of if [ "$var" == "string" ]
– Brynjar
Aug 5 '11 at 16:13
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Begin, Rescue and Ensure in Ruby?
...he exception class, in which case all exceptions that inherit from StandardError will be caught. (Please note that this does not mean that all exceptions are caught, because there are exceptions which are instances of Exception but not StandardError. Mostly very severe exceptions that compromise the...
'printf' vs. 'cout' in C++
...iceable when you print many arguments. If you have to write something like Error 2: File not found., assuming error number, and its description is placeholder, the code would look like this. Both examples work identically (well, sort of, std::endl actually flushes the buffer).
printf("Error %d: %s....
How to print to console when using Qt
...ng( "C Style Warning Message" );
qCritical() << "C++ Style Critical Error Message";
qCritical( "C Style Critical Error Message" );
// qFatal does not have a C++ style method.
qFatal( "C Style Fatal Error Message" );
Though as pointed out in the comments, bear in mind qDebug messages are re...