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What does 'wb' mean in this code, using Python?
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I am pretty sure 'b' opens files in binary mode on every platform, not just Windows or there would be an enormous caveat in here as well.
– mckenzm
May 2 '19 at 3:38
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第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...者使用二进制查看工具自行验证。
DB "PFOSBEST" ; 标识(公司、品牌等)8个字节
DW 512 ; 每扇区字节数
DB 1 ; 每簇扇区数
DW 1 ; Boot内容占几个扇区
DB 2 ; 共有多少FAT表
DW 224 ; 根目录文件数最大值
DW 2880 ; 扇...
F# changes to OCaml [closed]
...NQ in F# and is also essential for promissing projects like the WebSharper platform)
Active patterns for creating abstractions for functional data types (and generally very useful feature for more complicated pattern matching applications)
Computation expressions which is a language feature behind a...
Learning to write a compiler [closed]
...into an intermediate representation, and the bottom half takes care of the platform specific code generation.
Nonetheless, one idea for an easy way to approach this topic (the one we used in my compilers class, at least) is to build the compiler in the two pieces described above. Specifically, you...
Is Meyers' implementation of the Singleton pattern thread safe?
...g method is basically the simplest way to ensure proper concurrency on all platforms, while most forms of double-checked locking pattern variants may suffer from race conditions on certain architectures, unless instructions are interleaved with strategically places memory barriers.
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Linux/Unix command to determine if process is running?
I need a platform independent (Linux/Unix|OSX) shell/bash command that will determine if a specific process is running. e.g. mysqld , httpd ...
What is the simplest way/command to do this?
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Is gettimeofday() guaranteed to be of microsecond resolution?
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The TSC on Core and above Intel platforms is synchronized across multiple CPUs and increments at a constant frequency independent of power management states. See Intel Software Developer’s Manual, Vol. 3 Section 18.10. However the rate at which the counte...
How to write to a file in Scala?
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new java.io.PrintWriter() uses the platform default encoding, which probably means that the result file is not very portable. For example, if you want to produce a file that you can later send around by email, you should probably use the PrintWriter constructo...
What is time_t ultimately a typedef to?
...r is definitely implementation-specific. To find out definitively for your platform/compiler, just add this output somewhere in your code:
printf ("sizeof time_t is: %d\n", sizeof(time_t));
If the answer is 4 (32 bits) and your data is meant to go beyond 2038, then you have 25 years to migrate yo...
How does JavaFX compare to WPF? [closed]
... to JavaFX 2.0. This information will probably be subject to change as the platform is still fairly immature and is being actively developed.
Graphics
Like WPF, JavaFX uses a retained graphics rendering system. The user interface comprises a scene graph which is composed of 'nodes' which can be th...