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lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
... do{printf("[%s:%d]"fmt"\n",__FILE__,__LINE__,##args);exit(num);} while(0)
#define err_return(num,fmt,args) \
do{printf("[%s:%d]"fmt"\n",__FILE__,__LINE__,##args);return(num);} while(0)
//lua中调用的c函数定义,实现加法
int csum(lua_State* l)
{
int a = lua_tointeger(l,1...
Are lists thread-safe?
...to concurrently access, the lists's data is not protected. For example:
L[0] += 1
is not guaranteed to actually increase L[0] by one if another thread does the same thing, because += is not an atomic operation. (Very, very few operations in Python are actually atomic, because most of them can cau...
Multiple inputs with same name through POST in php
...
220
Change the names of your inputs:
<input name="xyz[]" value="Lorem" />
<input name="xyz...
Change one value based on another value in pandas
... for you.
import pandas
df = pandas.read_csv("test.csv")
df.loc[df.ID == 103, 'FirstName'] = "Matt"
df.loc[df.ID == 103, 'LastName'] = "Jones"
As mentioned in the comments, you can also do the assignment to both columns in one shot:
df.loc[df.ID == 103, ['FirstName', 'LastName']] = 'Matt', 'Jone...
Height equal to dynamic width (CSS fluid layout) [duplicate]
... |
edited Dec 5 '14 at 16:05
chridam
82.4k1818 gold badges159159 silver badges185185 bronze badges
answe...
How to initialize a vector in C++ [duplicate]
...is with an array:
int vv[2] = { 12,43 };
std::vector<int> v(&vv[0], &vv[0]+2);
Or, for the case of assignment to an existing vector:
int vv[2] = { 12,43 };
v.assign(&vv[0], &vv[0]+2);
Like James Kanze suggested, it's more robust to have functions that give you the beginni...
What is the difference between ManualResetEvent and AutoResetEvent in .NET?
... |
edited Jan 7 '15 at 10:39
Yves M.
24.5k1919 gold badges8989 silver badges118118 bronze badges
answe...
Arduino 101 实验06 - 土壤湿度传感器，做一个浇水提醒 · App Inventor 2 中文网
... 搜索 Arduino 101 实验06 - 土壤湿度传感器，做一个浇水提醒
实验06：土壤湿度与浇水提醒
这个实验做完你会得到什么
一、器材清单
二...