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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.
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impro...
How to make an OpenGL rendering context with transparent background?
...pragma comment (lib, "glu32.lib")
#include <assert.h>
#include <tchar.h>
#ifdef assert
#define verify(expr) if(!expr) assert(0)
#else verify(expr) expr
#endif
const TCHAR szAppName[]=_T("TransparentGL");
const TCHAR wcWndName[]=_T("WS_EX_LAYERED OpenGL");
HDC hDC;
HGLRC ...
What does it mean by buffer?
...ample. In a C program, for example, you might have:
#define BUFSIZE 1024
char buffer[BUFSIZE];
size_t len = ;
// ... later
while((len=read(STDIN, &buffer, BUFSIZE)) > 0)
write(STDOUT, buffer, len);
... which is a minimal version of cp(1). Here, the buffer array is used to store the ...
Extracting substrings in Go
...ncluding whitespace), then process it. Using bufio.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
...
Clearing localStorage in javascript?
...rStorageExcept = function(exceptions) {
let keys = [];
exceptions = [].concat(exceptions); // prevent undefined
// get storage keys
$.each(localStorage, (key) => {
keys.push(key);
});
// loop through keys
for (let i = 0; i < keys.length; i++) {
let key = keys[i];
le...
SQL SERVER: Get total days between two dates
...
It also proceeds datetime and datetime2 like a charm as I can see in my results.
– Honza P.
Feb 28 at 8:40
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Is sizeof(bool) defined in the C++ language standard?
...ndard puts notable emphasis on this fact.
§5.3.3/1, abridged:
sizeof(char), sizeof(signed char) and sizeof(unsigned char) are 1; the result of sizeof applied to any other fundamental type is implementation-defined. [Note: in particular, sizeof(bool) and sizeof(wchar_t) are implementation-defin...
How to compare Unicode characters that “look alike”?
...
In many cases, you can normalize both of the Unicode characters to a certain normalization form before comparing them, and they should be able to match. Of course, which normalization form you need to use depends on the characters themselves; just because they look alike doesn'...
Error: free(): invalid next size (fast):
...
If you are trying to allocate space for an array of pointers, such as
char** my_array_of_strings; // or some array of pointers such as int** or even void**
then you will need to consider word size (8 bytes in a 64-bit system, 4 bytes in a 32-bit system) when allocating space for n pointers. ...
C/C++获取Windows的CPU、内存、硬盘使用率 - C/C++ - 清泛网 - 专注C/C++及内核技术
...icalDriveStrings()函数获取所有驱动器字符串信息长度。
char* DStr = new char[DSLength];//用获取的长度在堆区创建一个c风格的字符串数组
GetLogicalDriveStrings(DSLength, (LPTSTR)DStr);
//通过GetLogicalDriveStrings将字符串信息复制到堆区数...