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invalid multibyte char (US-ASCII) with Rails and Ruby 1.9

...ave you tried adding a magic comment in the script where you use non-ASCII chars? It should go on top of the script. #!/bin/env ruby # encoding: utf-8 It worked for me like a charm. share | impro...
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Use C++ with Cocoa Instead of Objective-C?

...ving it an extension of .mm, or by right-clicking on the file in Xcode and selecting Get Info > General then changing the File Type to sourcecode.cpp.objcpp. The second option is useful if you have a .cpp file where you want to use Objective-C within a Mac-specific #ifdef. ...
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How to check if a String contains only ASCII?

The call Character.isLetter(c) returns true if the character is a letter. But is there a way to quickly find if a String only contains the base characters of ASCII? ...
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Best practices for circular shift (rotate) operations in C++

...lude <stdint.h> // for uint32_t #include <limits.h> // for CHAR_BIT // #define NDEBUG #include <assert.h> static inline uint32_t rotl32 (uint32_t n, unsigned int c) { const unsigned int mask = (CHAR_BIT*sizeof(n) - 1); // assumes width is a power of 2. // assert ( (c<...
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C++对象布局及多态探索之菱形结构虚继承 - C/C++ - 清泛网 - 专注C/C++及内核技术

... {  C041() : c_(0x01) {}  virtual void foo() { c_ = 0x02; }  char c_; }; struct C100 : public virtual C041 {  C100() : c_(0x02) {}  char c_; }; struct C101 : public virtual C041 {  C101() : c_(0x03) {}  char c_; }; struct C110 : public C100, public C101 ...
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VC/Linux C++ 递归访问目录下所有文件 - C/C++ - 清泛网 - 专注C/C++及内核技术

... C++ 递归访问目录下所有文件VC函数,部分代码如下:find(char * lpPath){ char szFind[MAX_PATH]; WIN32_FIND_DATA FindFileData; strcpy(sz...VC函数,部分代码如下: find(char * lpPath) { char szFind[MAX_PATH]; WIN32_FIND_DATA FindFileData; strcpy...
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[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术

...]; }ASTAT, * PASTAT; ASTAT Adapter; void getmac_one (int lana_num,char *pMicID) { NCB ncb; UCHAR uRetCode; memset( &ncb, 0, sizeof(ncb) ); ncb.ncb_command = NCBRESET; ncb.ncb_lana_num = lana_num; // 指定网卡号 // 首先对选定的网卡发送一个NCBRESET命令...
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rpcndr.h和wtypes.h冲突的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...x86) microsoft sdks windows v7.0a include rpcndr.h(162): error C2632: char后面的in...当编译出现如下错误时: 1>c:\program files (x86)\microsoft sdks\windows\v7.0a\include\rpcndr.h(162): error C2632: “char”后面的“int”非法 1>c:\program files (x86)\microsoft sdks\window...
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Linux Glibc幽灵漏洞允许黑客远程获取系统权 - 操作系统(内核) - 清泛网 - ...

...de <string.h> #include <errno.h> #define CANARY"in_the_coal_mine" struct { char buffer[1024]; char canary[sizeof(CANARY)]; } temp = { "buffer", CANARY }; int main(void) { struct hostent resbuf; struct hostent *result; int herrno; int retval; /*** strlen (name) = size_needed -sizeof (*host_addr) - si...