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Cmake vs make sample codes?
...lt builds a release target, but offers also a debug target:
#Makefile
CC = gcc
CPP = g++
RANLIB = ar rcs
RELEASE = -c -O3
DEBUG = -c -g -D_DEBUG
INCDIR = -I./stuff/include
LIBDIR = -L./stuff/lib -L.
LIBS = -lstuff -lmystatlib -lmydynlib
CFLAGS = $(RELEASE)
PROGOBJS = prog1.o prog2.o prog3.o
...
How to track down a “double free or corruption” error
...can corrupt the heap). It detects and reports the errors as soon as they occur, thus pointing you directly to the cause of the problem.
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How to update a mongo record using Rogue with MongoCaseClassField when case class contains a scala E
...
One of the long-standing problems with Rogue was that it was too easy to
accidentally make a field that was not serializable as BSON, and have it
fail at runtime (when you try to add that value to a DBObject) rather than
at compile time.
I introduced the BSONType type class to try to address this....
#pragma pack effect
...ormance penalty (or outright error) on some architectures associated with accessing variables that are not aligned properly. For example, given 4-byte integers and the following struct:
struct Test
{
char AA;
int BB;
char CC;
};
The compiler could choose to lay the struct out in memory ...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...大小是多少？https://community.appinventor.mi ... g-ai2-locally/61743accept:
*/*
accept-encoding:
gzip, deflate
accept-language:
zh-CN
connection:
keep-alive
content-length:
1101630
content-type:
text/x-gwt-rpc; charset=UTF-8
cookie:
Hm_lvt_8d287b854d737bdc880e8ddeac1b309d=17398647...
使用Activity启动器组件 · App Inventor 2 中文网
...：
Action：android.intent.action.WEB_SEARCH
打开浏览器到指定网页：将这些 ActivityStarter 与 VIEW 操作和数据 Uri 一起使用，将手机浏览器打开到指定的网页，例如，
Action：android.intent.action.VIEW
DataUri：https://www.fun123.cn
使用预先指定的...
What is the Sign Off feature in Git for?
...lly use it.
It was introduced in the wake of the SCO lawsuit, (and other accusations of copyright infringement from SCO, most of which they never actually took to court), as a Developers Certificate of Origin. It is used to say that you certify that you have created the patch in question, or that y...
AngularJS access parent scope from child controller
...g-controller="ChildCtrl">
</div>
</div>
Then you can access the parent scope as follows
function ParentCtrl($scope) {
$scope.cities = ["NY", "Amsterdam", "Barcelona"];
}
function ChildCtrl($scope) {
$scope.parentcities = $scope.$parent.cities;
}
If you want to access...
make: Nothing to be done for `all'
...hat you use tabs instead of spaces inside of your rules.
all:
<\t>$(CC) $(CFLAGS) ...
instead of
all:
$(CC) $(CFLAGS) ...
Please see the GNU make manual for the rule syntax description: https://www.gnu.org/software/make/manual/make.html#Rule-Syntax
...
How to see which flags -march=native will activate?
I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using?
...