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Order discrete x scale by frequency/value
...king a dodged bar chart using ggplot with discrete x scale, the x axis are now arranged in alphabetical order, but I need to rearrange it so that it is ordered by the value of the y-axis (i.e., the tallest bar will be positioned on the left).
...
How do I analyze a program's core dump file with GDB when it has command-line parameters?
...need to pass it again
objdump -s core can be used to dump memory in bulk
Now for the full educational test setup:
main.c
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int myfunc(int i) {
*(int*)(NULL) = i; /* line 7 */
return i - ...
Long-held, incorrect programming assumptions [closed]
... that I was behind the curve on the things that all programmers must just know intuitively.
I've realized over time that I'm effectively comparing my knowledge to the collective knowledge of many people, not a single individual and that is a pretty high bar for anyone. Most programmers in the real...
What are the best PHP input sanitizing functions?
...pes. Everything submitted is initially treated like a string, so forcing known-numeric data into being an integer or float makes sanitization fast and painless.
What about free-form text fields and textareas? You need to make sure that there's nothing unexpected in those fields. Mainly, you need ...
Domain Driven Design: Domain Service, Application Service
...is not the domain's concern and is therefore defined by an interface.
For now, we'll focus on the IExchangeRateService. The business logic for this service is implemented by an external web service. However, its concept is still part of the domain and is represented by this interface.
Infrastructu...
How does this print “hello world”?
...g the number with the mask 31₁₀ = 11111₂ in the sentence l & 31
Now the code maps the 5-bit value to its corresponding 7-bit ascii character. This is the tricky part, check the binary representations for the lowercase
alphabet letters in the following table:
ascii | ascii | ...
How do I set cell value to Date and apply default Excel date format?
...ache POI for some time to read existing Excel 2003 files programmatically. Now I have a new requirement to create entire .xls files in-memory (still using Apache POI) and then write them to a file at the end. The only problem standing in my way is the handling of cells with dates.
...
.NET Global exception handler in console application
...answer and the comments in reply is to realize that this code demonstrates now to detect the exception, but not fully "handle" it as you might in a normal try/catch block where you have the option to continue. See my other answer for details. If you "handle" the exception this way, you have no opti...
Switch statement fallthrough in C#?
...amming with C# since the early days of 1.0, and I've never seen this until now. Just goes to show, you learn new things every day.
– Erik Forbes
Feb 5 '09 at 3:30
39
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Initial bytes incorrect after Java AES/CBC decryption
...utputs bytes, so does decryption (case in point : the Cipher object does). Now, one particular use case may be to have encrypted bytes coming from a String, or be sent as a String (base64 MIME attachment for a Mail...), but that is an issue of encoding bytes, for which there exists hundreds of solut...