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Multiple cases in switch statement
...ld use some if's (or a table lookup) to reduce the input to a set of enums and switch on the enum.
– Harvey
Jul 28 '13 at 20:00
5
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How to find the type of an object in Go?
... following snippet will print out the reflection type of a string, integer and float.
package main
import (
"fmt"
"reflect"
)
func main() {
tst := "string"
tst2 := 10
tst3 := 1.2
fmt.Println(reflect.TypeOf(tst))
fmt.Println(reflect.TypeOf(tst2))
fmt.Println(refle...
Insert line after first match using sed
For some reason I can't seem to find a straightforward answer to this and I'm on a bit of a time crunch at the moment. How would I go about inserting a choice line of text after the first line matching a specific string using the sed command. I have ...
...
What method in the String class returns only the first N characters?
...first str.Length characters of str", but Substring does that check for you and just does return this if you've asked for the whole string.
– stevemegson
Aug 25 '10 at 14:37
2
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Short form for Java if statement
...= city.getName() == null ? "N/A" : city.getName();
– Andres F.
Jan 17 '12 at 17:02
21
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Python: Tuples/dictionaries as keys, select, sort
...ferent colors, e.g., 24 blue bananas, 12 green apples, 0 blue strawberries and so on.
I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
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Constant pointer vs Pointer to constant [duplicate]
...erally I would prefer the declaration like this which make it easy to read and understand (read from right to left):
int const *ptr; // ptr is a pointer to constant int
int *const ptr; // ptr is a constant pointer to int
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How to comment out a block of Python code in Vim
...rst column of the first line you want to comment.
Step 2: Press: Ctrl+v and select the lines you want to comment:
Step 3: Shift-I#space (Enter Insert-at-left mode, type chars to insert. The selection will disappear, but all lines within it will be modified after Step 4.)
Step 4: Esc
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insert vs emplace vs operator[] in c++ map
I'm using maps for the first time and I realized that there are many ways to insert an element. You can use emplace() , operator[] or insert() , plus variants like using value_type or make_pair . While there is a lot of information about all of them and questions about particular cases, I sti...
memcpy() vs memmove()
I am trying to understand the difference between memcpy() and memmove() , and I have read the text that memcpy() doesn't take care of the overlapping source and destination whereas memmove() does.
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