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C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...);
if (bSucceed)
{
markup.IntoElem();
bSucceed = markup.FindElem(_T("update"));
if (bSucceed)
{
_tcsncpy_s(param.version, markup.GetAttrib(_T("ver")), sizeof(param.version));
_tcsncpy_s(param.pkgname, markup.GetAttrib(_T("pkg")), sizeof(param.pkgname));
if (markup.GetAttr...
Run an OLS regression with Pandas Data Frame
...df = pd.DataFrame({"A": [10,20,30,40,50], "B": [20, 30, 10, 40, 50], "C": [32, 234, 23, 23, 42523]})
>>> result = sm.ols(formula="A ~ B + C", data=df).fit()
>>> print(result.params)
Intercept 14.952480
B 0.401182
C 0.000352
dtype: float64
>>> pri...
Why is it slower to iterate over a small string than a small list?
...> >> 31 POP_TOP
#>>> 32 LOAD_CONST 0 (None)
#>>> 35 RETURN_VALUE
def string_iterate():
[item for item in "abc"]
dis.dis(string_iterate)
#>>> 2 0 BUILD_LIST 0
#&g...
Best way to implement Enums with Core Data
...r value. Make sure to set the data type in the core data model as "Integer 32".
MyEntity.h
typedef enum {
kEnumThing, /* 0 is implied */
kEnumWidget, /* 1 is implied */
} MyThingAMaBobs;
@interface myEntity : NSManagedObject
@property (nonatomic) int32_t coreDataEnumStorage;
Elsewhere in code
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Decorators with parameters?
... |
edited Oct 18 '19 at 5:32
Boris
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answered May ...
Macro vs Function in C
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Isn't that, in context of low-level MCU (AVRs, i.e. ATMega32) computing, Macros are better choice, as they do not grow call stack, like function calls do?
– hardyVeles
Aug 29 '19 at 22:22
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Update multiple rows in same query using PostgreSQL
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Benjamin CrouzierBenjamin Crouzier
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...
How to toggle a value in Python
...gt; print "%.2f usec/pass" % (1000000 * t4.timeit(number=100000)/100000)
6.32 usec/pass
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Total memory used by Python process?
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326
Here is a useful solution that works for various operating systems, including Linux, Windows 7...
How do I install cygwin components from the command line?
...wanted to know. I wonder why they aren't mature?
– vy32
Feb 20 '12 at 2:53
4
@vy32: because you d...