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print call stack in C or C++
...cktrace(3) that simply returns an array of void * (in fact each of these point to the return address from the corresponding stack frame). To translate these to something of use, there's backtrace_symbols(3).
Pay attention to the notes section in backtrace(3):
The symbol names may be unavailable...
Pure JavaScript Send POST Data Without a Form
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The [new-ish at the time of writing in 2017] Fetch API is intended to make GET requests easy, but it is able to POST as well.
let data = {element: "barium"};
fetch("/post/data/here", {
method: "POST",
body: JSON.stringify(data)
}).then(res => {
console.log("Request compl...
How to convert milliseconds into human readable form?
I need to convert an arbitrary amount of milliseconds into Days, Hours, Minutes Second.
19 Answers
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Python string.replace regular expression [duplicate]
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As a summary
import sys
import re
f = sys.argv[1]
find = sys.argv[2]
replace = sys.argv[3]
with open (f, "r") as myfile:
s=myfile.read()
ret = re.sub(find,replace, s) # <<< This is where the magic happens
print ret
...
Viewing all defined variables [duplicate]
...ed from comment.
To make it look a little prettier when printing:
import sys, pprint
sys.displayhook = pprint.pprint
locals()
That should give you a more vertical printout.
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Easiest way to convert int to string in C++
What is the easiest way to convert from int to equivalent string in C++. I am aware of two methods. Is there any easier way?
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Convert decimal to binary in python [duplicate]
Is there any module or function in python I can use to convert a decimal number to its binary equivalent?
I am able to convert binary to decimal using int('[binary_value]',2), so any way to do the reverse without writing the code to do it myself?
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How to convert an int array to String with toString method in Java [duplicate]
...parated by the characters ", " (a comma followed by a space). Elements are converted to strings as by String.valueOf(int). Returns "null" if a is null.
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Converting pixels to dp
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// Converts 14 dip into its equivalent px
float dip = 14f;
Resources r = getResources();
float px = TypedValue.applyDimension(
TypedValue.COMPLEX_UNIT_DIP,
dip,
r.getDisplayMetrics()
);
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How to convert Nonetype to int or string?
... of their presence (which is totally acceptable behavior), you may need to convert None to 0 (see kindall answer)
– spider
Nov 28 '13 at 17:02
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