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Integers are natively supported in Bash shell. However, what if we use floating point in Bash shell?
The short and direct answer is using ‘bc‘ command – “An arbitrary precision calculator language.”
Just run bc and enter some floating point calculation expression, such as “1.2+8.2″, bc will give the result.
In a script, ...
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When do debugging and optimization, we sometimes need to generate and investigate into the assembly generated by the compiler. Generating a mixed source and assembly list will help the programmer a lot for debugging and optimization. gcc can achieve this by working the the assembler.
Generate assembly list mixed with the ... read more »
Vim provides some basic formatting commands. A combination of these commands with the editing commands will make the programmer happy.
A list of basic text formatting commands in Vim:
= is an operator that formats/indents text.
i{ is a text object that specifies the surrounding code block. It should be used together with ... read more »
I begin to use vim for programming. I like the tools that focus on one function. I used to use emacs. But I think I like vim more.
For debugging, I use gdb. But I use the front end cgdb. I can see the codes with the cursor when debugging. I ... read more »
OCaml is an interesting functional language. There are lots learning materials on the Internet. I compile a list of resources for OCaml learning and reference.
Recommended OCaml learning and reference material
The book from Jason Hickey and the User’s Manual from INRIA are the best material I know to learn OCaml.
A very ... read more »
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Integers are natively supported in Bash shell. However, what if we use floating point in Bash shell?
The short and direct answer is using ‘bc‘ command – “An arbitrary precision calculator ... read more »
When we program in C, a C reference by hand is usually useful. The GNU C Reference Manual provides us a good reference for the C programming language implemented by ... read more »
OCaml is an interesting functional language. There are lots learning materials on the Internet. I compile a list of resources for OCaml learning and reference.
Recommended OCaml learning and reference material
The ... read more »
“The C language provides no built-in facilities for performing such common operations as input/output, memory management, string manipulation, and the like. Instead, these facilities are defined in a standard library, ... read more »
I compile a list of C++ styles on the Internet.
http://geosoft.no/development/cppstyle.html
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
http://www.mactech.com/articles/develop/issue_02/C%2B%2B_Style_Guide_v007.html
http://www.cs.uga.edu/~dkl/1302/Fall99/style.html read more »
This post collect the reference resource for x86-64 (also know as Intel 64, AMD 64) ISA / assembly language programming. x86-64 is a 64-bit extension of the Intel x86 instruction ... read more »
Reference of the C++ Language Library, with detailed descriptions of its elements and examples on how to use its functions:
http://www.cplusplus.com/reference/
C++ reference:
http://www.cppreference.com/wiki/ read more »
One cool feature of gcc is that it can inline assembly into C code. With inline assembly, the programmer can precisely control the execution of the processor, such as forcing ... read more »
