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What are all the common undefined behaviours that a C++ programmer should know about? [closed]
What are all the common undefined behaviours that a C++ programmer should know about?
11 Answers
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Why should I use a pointer rather than the object itself?
I'm coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration:
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What do the following phrases mean in C++: zero-, default- and value-initialization?
What do the following phrases mean in C++:
2 Answers
2
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How to enable C++11/C++0x support in Eclipse CDT?
... Eclipse Indigo 20110615-0604 on Windows with a Cygwin setup.
Make a new C++ project
Default options for everything
Once created, right-click the project and go to "Properties"
C/C++ Build -> Settings -> Tool Settings -> GCC C++ Compiler -> Miscellaneous -> Other Flags. Put -std=c+...
Regular cast vs. static_cast vs. dynamic_cast [duplicate]
I've been writing C and C++ code for almost twenty years, but there's one aspect of these languages that I've never really understood. I've obviously used regular casts i.e.
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How to set tbody height with overflow scroll
...widths.
/* Set a fixed scrollable wrapper */
.tableWrap {
height: 200px;
border: 2px solid black;
overflow: auto;
}
/* Set header to stick to the top of the container. */
thead tr th {
position: sticky;
top: 0;
}
/* If we use border,
we must use table-collapse to avoid
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'typeid' versus 'typeof' in C++
I am wondering what the difference is between typeid and typeof in C++. Here's what I know:
6 Answers
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C++ templates that accept only certain types
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C++11 has come. Now we can use static_assert(std::is_base_of<List, T>::value, "T must extend list").
– Siyuan Ren
Sep 10 '13 at 2:55
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Why is there no Constant feature in Java?
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Every time I go from heavy C++ coding to Java, it takes me a little while to adapt to the lack of const-correctness in Java. This usage of const in C++ is much different than just declaring constant variables, if you didn't know. Essentially, it ensu...
How to crop an image in OpenCV using Python
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this code crop an image from x=0,y=0 position to h=100,w=200
import numpy as np
import cv2
image = cv2.imread('download.jpg')
y=0
x=0
h=100
w=200
crop = image[y:y+h, x:x+w]
cv2.imshow('Image', crop)
cv2.waitKey(0)
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