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Should I store entire objects, or pointers to objects in containers?
... storing pointers into vector can be efficient if used along with a custom allocator for the pointees. The custom allocator has to take care of the cache locality, for example using placement new (see en.wikipedia.org/wiki/Placement_syntax#Custom_allocators).
– amit
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Stack Memory vs Heap Memory [duplicate]
...C++ and I am always wondering what exactly is stack memory vs heap memory. All I know is when I call new, I would get memory from heap. If if create local variables, I would get memory from stack. After some research on internet, the most common answer is stack memory is temporary and heap memory is...
Convert datetime to Unix timestamp and convert it back in python
... %s does not work on Windows systems (ValueError: Invalid format string)
– chrki
May 3 '17 at 8:13
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Make hibernate ignore class variables that are not mapped [duplicate]
...ss, unless you specifically mark them with @Transient:
@Transient
private String agencyName;
The @Column annotation is purely optional, and is there to let you override the auto-generated column name. Furthermore, the length attribute of @Column is only used when auto-generating table definition...
How to remove/change JQuery UI Autocomplete Helper text?
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I tried this and it puts the string "null" in the same place. The solution is to change to: noResults: '', and you will get no message at all.
– Patrick
Jan 11 '13 at 17:55
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How do you run a single test/spec file in RSpec?
...tests — for the one file I'm editing, for example. rake spec executes all the specs. My project is not a Rails project, so rake spec:doc doesn't work.
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fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
...tform, for the insufficiency of cuda. I think the library files linked are all compiled on the x86 platform, but when I compile it, I get the error message "fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'".
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Unbound classpath container in Eclipse
... have advantages and is even recommended practice for Java projects (personally, I would not do that).
Maybe some of the following work for you:
Edit the project's properties (right-click project, Properties, Java Build Path, Libraries, Remove and Add Library.
Import the project's files without t...
Alias with variable in bash [duplicate]
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I'd create a function for that, rather than alias, and then exported it, like this:
function tail_ls { ls -l "$1" | tail; }
export -f tail_ls
Note -f switch to export: it tells it that you are exporting a function. Put this in your .bashrc and you are good to go.
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Making git auto-commit
I'd like to use git to record all the changes to a file.
18 Answers
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