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Generator Expressions vs. List Comprehension
...as you consume the bits.
Imagine you have a 2TB log file called "hugefile.txt", and you want the content and length for all the lines that start with the word "ENTRY".
So you try starting out by writing a list comprehension:
logfile = open("hugefile.txt","r")
entry_lines = [(line,len(line)) for l...
Does Git Add have a verbose switch
... setting the GIT_TRACE environment variable:
export GIT_TRACE=1
git add *.txt
Output:
14:06:05.508517 git.c:415 trace: built-in: git add test.txt test2.txt
14:06:05.544890 git.c:415 trace: built-in: git config --get oh-my-zsh.hide-dirty
...
Escape angle brackets in a Windows command prompt
...ollowing:
echo some string < with angle > brackets >>myfile.txt
6 Answers
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Copying the GNU screen scrollback buffer to a file (extended hardcopy)
...
Press Ctrl+A :bufferfile /tmp/somefile.txt ENTER, and then Ctrl+A >
This will write the current contents of the buffer to the named file.
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Check if full path given
... "C:\" or "d:\".
A single backslash, for example, "\directory" or "\file.txt". This is also referred to as an absolute path.
If a file name begins with only a disk designator but not the
backslash after the colon, it is interpreted as a relative path to the
current directory on the dri...
How to create a Custom Dialog box in android?
...oid:orientation="vertical" >
<TextView
android:id="@+id/txt_dia"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="10dp"
android:text="Do you realy want to exit ?"...
Difference between -pthread and -lpthread while compiling
...talled on my Ubuntu machine:
$ gcc -pthread -E -dM test.c > dm.pthread.txt
$ gcc -E -dM test.c > dm.nopthread.txt
$ diff dm.pthread.txt dm.nopthread.txt
152d151
< #define _REENTRANT 1
208d206
< #define __USE_REENTRANT 1
Using the -lpthread option only causes the pthread libr...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...。这些代码也会被编译一个函数功能块(当然并不是一个完整的函数)。它实际上变成了一个怎么结束函数执行的代码块。代码形式如下：
// execute handler code
return addressWhereToContinueAfterCatch;
OS得到跳转地址后，它会重建异常发生...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...。这些代码也会被编译一个函数功能块(当然并不是一个完整的函数)。它实际上变成了一个怎么结束函数执行的代码块。代码形式如下：
// execute handler code
return addressWhereToContinueAfterCatch;
OS得到跳转地址后，它会重建异常发生...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...。这些代码也会被编译一个函数功能块(当然并不是一个完整的函数)。它实际上变成了一个怎么结束函数执行的代码块。代码形式如下：
// execute handler code
return addressWhereToContinueAfterCatch;
OS得到跳转地址后，它会重建异常发生...