Sunday, May 6. 2012
A tool for quick c one liners
There is always something to try out when writing c programs. Sometimes you just want to know if a small piece of code works as expected without having to recompile the whole project. I used to write small programs for this, just like
But the more you program c, the more pieces of code you possibly want to try out. And writing all that wrapping stuff around the snippet you actually want to check isn't really productive. Therefore I came to the idea of a small program which would straight forward compile and run a piece of c code.
C:
#include <stdio.h> int main(void) { printf("%c\n", 127); return 0; }
But the more you program c, the more pieces of code you possibly want to try out. And writing all that wrapping stuff around the snippet you actually want to check isn't really productive. Therefore I came to the idea of a small program which would straight forward compile and run a piece of c code.
Continue reading "A tool for quick c one liners"
Sunday, June 22. 2008
Functions vs. inline code
Recently I had a little discussion about our style guide with one of the co-workers. And the matter was concerning the line length. Most default is to limit the line length with 79-85 characters - because of terminals, printing etc. But an other question took my head in the middle of the conversation: limiting the line length would mean for example to encapsulate deep included blocks of the code into functions - sounds not bad, but ...
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Sunday, April 27. 2008
Don't underestimate SQL
Hi there.
The things I wanna to talk about today are - relational databases building. Particularly I would discuss such the attainments of relational sql as join and subselect. For my experiment I'll take PostgreSQL and Python.
So, lets start:
The things I wanna to talk about today are - relational databases building. Particularly I would discuss such the attainments of relational sql as join and subselect. For my experiment I'll take PostgreSQL and Python.
So, lets start:
BASH:
user@host~$ su postgres postgres@host~$ createuser -P test Enter password for new role: Enter it again: Shall the new role be a superuser? (y/n) n Shall the new role be allowed to create more new roles? (y/n) n postgres@host~$ createdb test postgres@host~$ exit
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