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做了一个调用malloc 分配memory 的小程序.
执行之后，top/ ps -A -o pcpu,pmem,cmd
发现memory 没有分配。
在malloc 后面添加 memset ，memory 才被分配
执行之后，top/ ps -A -o pcpu,pmem,cmd
发现memory 没有分配。
在malloc 后面添加 memset ，memory 才被分配
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undefined reference to `wxColour::IsOk() const'
2009-11-20 16:51 889CXXFLAGS多了一个参数-fvisibility-inli ... -
unsigned signed cast
2009-07-27 18:03 749unsigned 和 signed 一起运算时， signed ... -
negative mod
2009-07-27 17:59 777(-10) % 3 = ? (-10) - (3* -4) ... -
全局静态变量 global static variable
2009-04-25 20:49 1525全局静态变量与 全局变量的区别在于全局静态变量只能在被本源文件 ... -
return value of GTK callback function
2009-04-25 20:47 686False: 如果你想在你的Callback 之后继续把si ... -
函数的声明 (Too Much Default Visibility)
2009-04-25 20:47 686函数的使用范围应该得到最大程度的限制，而不是default 的 ... -
Error: No rule to make target XXX
2009-04-25 20:44 3048在Src 目录下new 几个新的目录和文件，Make 就出现上 ... -
when string passing as parameter(const)
2009-04-25 20:28 631It means when you hold the poin ... -
多维pointer 如何free
2009-04-25 20:26 671free 的方法与之前如何 alloc的相关。 * ... -
关于 #include 的位置
2009-04-25 20:26 710是放在*.h or *.c 里面？ * 如果是*.h ... -
c++ 编译问题
2009-04-25 20:25 557一个简单的vector 的c++ 程序， 编译错误 #inc ... -
关于二维指针的初始化
2009-04-25 20:23 1373一个初级的问题： char *a; char **arr, ... -
errir: request for member 'XXX' in 'YYY'. which is
2009-04-25 20:23 1041错误的原因好像有两种 1. http://groups.g ... -
inline 声明
2009-04-25 15:54 775inline only 是对complier一种请求，comp ... -
函数参数的 Default value
2009-04-25 15:53 783与 ANSI C 不同，C++的函数参数可以有Default ... -
build-in 变量的初始化
2009-04-25 15:52 669如果是 file scope的build-in 变量会被初始化 ... -
pointer 使用时注意事项
2009-04-25 15:51 706使用pointer前一定要先确认其值是否为0 if (!p) ... -
Pass by reference
2009-04-25 15:50 690C++ 中 函数的参数传递时，如果数据量比较大，即使是没有打算 ... -
伪随机数 pseudo random number
2009-04-25 15:48 853C 语言中的 srand 和 rand * Why ...
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