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jesse li
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Pointer Basic
Long ago, before I started to write my first C program, I was told that pointer will be the one of the difficulties in C to struggle with.  Now, after getting enrolled into computer science major in college for one year, I still feel scared when I use point...

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introduction to pipe in multi-process
When we design a program with multi-processing,  we usually want processes to communicate with each other to finish a task. For example,in a program we may want process 1 to read a file from the system and do some operation, then send the the edited file di...

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test
function()

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test

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