大约有 23,300 项符合查询结果（耗时：0.0491秒） [XML]
Learning Python from Ruby; Differences and Similarities
...that's the programmer's fault, not the language's.
– Cam Jackson
Oct 24 '13 at 2:44
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show 3 more comments
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What is the fastest integer division supporting division by zero no matter what the result is?
...ype f, @function
f:
pushl %ebp
xorl %eax, %eax
movl %esp, %ebp
movl 12(%ebp), %edx
testl %edx, %edx
sete %al
addl %edx, %eax
movl 8(%ebp), %edx
movl %eax, %ecx
popl %ebp
movl %edx, %eax
sarl $31, %edx
idivl %ec...
What is the difference between a weak reference and an unowned reference?
...ned above. Check "Resolving Strong Reference Cycles for Closures" section, esp. Quote: " Swift requires you to write self.someProperty or self.someMethod() (rather than just someProperty or someMethod()) whenever you refer to a member of self within a closure. This helps you remember that it’s pos...
Alternative to google finance api [closed]
...,BBT,BDX,BBBY,BBY,BIIB,BLK,HRB,BA,BWA,BXP,BSX,BMY,BRCM,BFB,CHRW,CA,CVC,COG,CAM,CPB,COF,CAH,HSIC,KMX,CCL,CAT,CBG,CBS,CELG,CNP,CTL,CERN,CF,SCHW,CHK,CVX,CMG,CB,CI,XEC,CINF,CTAS,CSCO,C,CTXS,CLX,CME,CMS,COH,KO,CCE,CTSH,CL,CMA,CSC,CAG,COP,CNX,ED,STZ,GLW,COST,CCI,CSX,CMI,CVS,DHI,DHR,DRI,DVA,DE,DLPH,DAL,XRA...
Can I use assert on Android devices?
... at a package level, or at a class level which enables assertions at that respective level. The flag is off by default, as a result of which the assertion checks are skipped.
I wrote the following code in my sample Activity:
public class AssertActivity extends Activity {
@Override
protected v...
How do I protect Python code? [closed]
... your secrets and trying to protect against NSA-class reverse engineering. Esp if you have a big python code base and reasons to be paranoid. ;)
– Macke
Jan 8 '16 at 8:18
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What is the fastest way to compute sin and cos together?
...
.align 4,0x90
.globl _fsincos
_fsincos:
pushl %ebp
movl %esp, %ebp
fldl 12(%ebp)
fsincos
movl 8(%ebp), %eax
fstpl 8(%eax)
fstpl (%eax)
leave
ret $4
.subsections_via_symbols
Tada, it uses the fsincos instruction!
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Performance of foreach, array_map with lambda and array_map with static function
...eed. It would be interesting to see the opcodes generated by this version, especially comparing with/without opcache since it does a lot of optimizations besides code caching.
– FGM
Jan 14 '17 at 16:04
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C++ performance challenge: integer to std::string conversion
...
MB/s is a strange metric, especially seeing how you don't remove trailing whitespaces from the string in your implementations. My updated code runs faster than your implementation with x64 VC++ 2005 on Core i7 920 (16.2M ops/s vs. 14.8M ops/s), _ltoa ...
Sort points in clockwise order?
... lea eax, DWORD PTR [ebx+ebx]
and edi, eax
mov eax, DWORD PTR _b$[esp+8]
sub edi, ecx
sub edi, ebx
add edi, esi
vmovss xmm0, DWORD PTR [eax]
vsubss xmm2, xmm0, xmm2
; 41 : const int dby = ((b.y() - center.y()) > 0) ? 1 : 0;
vmovss xmm0, DWORD PTR [eax+4]...