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When to use reinterpret_cast?
... I thought that reinterpret_cast<> guaranteed the same bit pattern. (which is not the same as a valid pointer to another type).
– Martin York
Feb 21 '09 at 21:37
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How to handle configuration in Go [closed]
...
nemonemo
44.3k1010 gold badges115115 silver badges118118 bronze badges
...
Understanding typedefs for function pointers in C
I have always been a bit stumped when I read other peoples' code which had typedefs for pointers to functions with arguments. I recall that it took me a while to get around to such a definition while trying to understand a numerical algorithm written in C a while ago. So, could you share your tips a...
Counting DISTINCT over multiple columns
...case the checksum ended up with a count 10% smaller. If you think of it a bit longer, Checksum just returns an int, so if you'd checksum a full bigint range you'll end up with a distinct count about 2 billion times smaller than there actually is. -1
– pvolders
...
How to calculate age (in years) based on Date of Birth and getDate()
...s method is still going to be more accurate.
– Bacon Bits
Jun 2 '14 at 13:00
1
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Get value of c# dynamic property via string
...ot
– Chris Marisic
Mar 21 '16 at 18:10
@IllidanS4 when you compared the CallSite code vs CallByName code did you compa...
How to rename items in values() in Django?
...
It's a bit hacky, but you could use the extra method:
MyModel.objects.extra(
select={
'renamed_value': 'cryptic_value_name'
}
).values(
'renamed_value'
)
This basically does SELECT cryptic_value_name AS renamed_value in t...
Android -Starting Service at Boot Time
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answered Dec 30 '10 at 13:03
Peter KnegoPeter Knego
78.2k1010 gold badges117117 silver badges145145 bronze badges
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configure: error: Unable to find gd.h anywhere under /usr/local/gd - ...
...gd库可解决
3.重新安装gd库，在安装时出现：
configure.ac:64: error: possibly undefined macro: AM_ICONV
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation. 错误，在./configure 后加上--enable-m4_pattern_allow 重新编译即...
错误解决:Xcode not set up properly. You may need to confirm the licens...
... be looking for xcodebuild.
Open the file:
Qt_install_folder/5.7/clang_64/mkspecs/features/mac/default_pre.prf
Step 2:
Replace:
isEmpty($$list($$system("/usr/bin/xcrun -find xcrun 2>/dev/null"))))
With:
isEmpty($$list($$system("/usr/bin/xcrun -find xcodebuild 2>/dev/null")))
Xc...