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Creating C formatted strings (not printing them)
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Use sprintf.
int sprintf ( char * str, const char * format, ... );
Write formatted data to string Composes a string with the same text
that would be printed if format was used on printf, but instead of
being printed, the content is stored as a C string in the buffer
pointed by str.
The size of...
Debug vs. Release performance
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Partially true. In debug mode, the compiler emits debug symbols for all variables and compiles the code as is. In release mode, some optimizations are included:
unused variables do not get compiled at all
some loop variables are taken out of the loop by the compiler if ...
Ruby: Calling class method from instance
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Rather than referring to the literal name of the class, inside an instance method you can just call self.class.whatever.
class Foo
def self.some_class_method
puts self
end
def some_instance_method
self.class.some_class_method...
What GRANT USAGE ON SCHEMA exactly do?
...role that must access the database from my php scripts, and I have a curiosity: if I execute
3 Answers
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“R cannot be resolved to a variable”? [duplicate]
In Eclipse, I've created a project from a source and now it shows errors - "R cannot be resolved to a variable". From what I found here, I had cleared and rebuilt the project, but still the R file doesn't appear in the /gen folder.
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Microsoft Roslyn vs. CodeDom
...ing a unified model that can generate code in C#, VB, and other languages, it lacks high fidelity with any of the languages that it supports (that's why you can't create a switch statement with CodeDom). CSharpCodeProvider.CompileAssemblyFromSource is simply a wrapper around executing csc.exe.
Rosl...
Definition of a Balanced Tree
I am just wondering if someone might be able to clarify the definition of a balanced tree for me. I have that "a tree is balanced if each sub-tree is balanced and the height of the two sub-trees differ by at most one.
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Difference between int32, int, int32_t, int8 and int8_t
... came across the data type int32_t in a C program recently. I know that it stores 32 bits, but don't int and int32 do the same?
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Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
...is? Is there a Faceboook API call that fetches a user's profile image URL without the user needing to Allow the application?
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Populating Spring @Value during Unit Test
I'm trying to write a Unit Test for a simple bean that's used in my program to validate forms. The bean is annotated with @Component and has a class variable that is initialized using
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