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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t.txt", "w+")) == NULL)
{
printf("文件打开出错，请检查文件是否存在！\n");
return -1;
}
else
{
printf("文件已经打开。");
}
/*读文件*/
char ch[64] = {0};
printf("文件内容：\n");
while(!feof(fp)) //判定文件是否结尾
{
if(fgets(ch,...
How to create .ipa file using Xcode?
Please tell me the complete procedure to build my app & use it on real iPhone.
9 Answers
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Codesign error: Certificate identity appearing twice
CodeSign error: Certificate identity 'iPhone Developer: XXXX (12345678)' appears more than once in the keychain. The codesign tool requires there only be one.
...
Get the device width in javascript
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window.innerWidth is returning 980 on Iphone (Chrome/Safari). How is that? <meta name="viewport" content="width=device-width" /> made no difference.
– Joao Leme
Oct 2 '12 at 0:48
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Debugging App When Launched by Push Notification
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In Xcode 6:
connect iPhone to Macbook with USB
launch the app on the iPhone by tapping the icon
In Xcode menu, Debug > Attach to Process > Pick your App
share
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Error: CUICatalog: Invalid asset name supplied: (null), or invalid scale factor : 2.000000
...
Add $arg3 == nil condition on Simulator, $r0 == nil condition on 32-bit iPhone, or $x2 == nil on 64-bit iPhone.
Run your application and see where debugger will stop.
P.S. Keep in mind this also happens if image name is empty string. You can check this by adding [(NSString*)$x2 length] == 0 to ...
动态追踪（Dynamic Tracing）技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...析当中可以扮演非常关键的角色，那么很自然地会想到，是否也可以用类似的方法和思想去追踪硬件。
我们知道其实操作系统是直接和硬件打交道的，那么通过追踪操作系统的某些驱动程序或者其他方面，我们也可以间接地去...
Submitting a form by pressing enter without a submit button
...work with desktop Chrome, it doesn't seem to work with Chrome or Safari on iPhone.
– Ulf Adams
Aug 21 '18 at 13:25
@Ul...
How to get browser width using JavaScript code?
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Having trouble using this on Safari iphone.
– nu everest
Aug 9 '17 at 13:37
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Why Choose Struct Over Class?
...PDATE (27 Mar 2018):
As of Swift 4.0, Xcode 9.2, running Release build on iPhone 6S, iOS 11.2.6, Swift Compiler setting is -O -whole-module-optimization:
class version took 2.06 seconds
struct version took 4.17e-08 seconds (50,000,000 times faster)
(I no longer average multiple runs, as varianc...