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Optimizing away a “while(1);” in C++0x
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Does someone have a good explanation of why this was necessary to allow?
Yes, Hans Boehm provides a rationale for this in N1528: Why undefined behavior for infinite loops?, although this is WG14 document the rationale applies to C++...
Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, what gives?
...ude application/x-javascript, as the MIME media types listed above are the ones registered in the standards tree by now (so there is no need, and there should be no want, to use experimental ones anymore). Cf. RFC 4329, "Scripting Media Types" (2005 CE) and my Test Case: Support for Scripting Media...
How to merge dictionaries of dictionaries?
...numbers of entries a recursive function is easiest:
def merge(a, b, path=None):
"merges b into a"
if path is None: path = []
for key in b:
if key in a:
if isinstance(a[key], dict) and isinstance(b[key], dict):
merge(a[key], b[key], path + [str(key)])
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What is the best way to compare floats for almost-equality in Python?
... Not to diminish the value of this answer (I think it's a good one), it's worth noting that the documentation also says: "Modulo error checking, etc, the function will return the result of..." In other words, the isclose function (above) is not a complete implementation.
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Python try-else
...if execution falls off the bottom of the try - if there was no exception. Honestly, I've never found a need.
However, Handling Exceptions notes:
The use of the else clause is better
than adding additional code to the try
clause because it avoids accidentally
catching an exception that was...
Merging without whitespace conflicts
... This ignores whitespace at line end, and considers all other sequences of one or more whitespace characters to be equivalent.
--ignore-all-space
Ignore whitespace when comparing lines.
This ignores differences even if one line has whitespace where the other line has none.
ks1322 adds i...
Why is processing a sorted array slower than an unsorted array?
...cy. A memory access can stall the CPU for 50-200 cycles. Given that number one could expect the program to become >10x slower when introducing random memory accesses.
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Picking a random element from a set
...ts, i.e., structures that have a .get() function.
– coneyhelixlake
Feb 19 '15 at 22:27
4
@bourbak...
Finding Key associated with max Value in a Java Map
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+1: You can have more than one key with the same maximum value. This loop will give you the first one it finds.
– Peter Lawrey
May 6 '11 at 12:19
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How to convert an int value to string in Go?
...do the job. But Sprintf will use the package reflect, and it will allocate one more object, so it's not an efficient choice.
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