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#define macro for debug printing in C?
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If you use a C99 or later compiler
#define debug_print(fmt, ...) \
do { if (DEBUG) fprintf(stderr, fmt, __VA_ARGS__); } while (0)
It assumes you are using C99 (the variable argument list notation is not supported in earlier versions). ...
When should assertions stay in production code? [closed]
There's a discussion going on over at comp.lang.c++.moderated about whether or not assertions, which in C++ only exist in debug builds by default, should be kept in production code or not.
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Best practices for in-app database migration for Sqlite
...pdates in a transaction so that if anything goes wrong, the changes aren't committed.
For making schema changes, sqlite supports "ALTER TABLE" syntax for certain operations (renaming the table or adding a column). This is an easy way to update existing tables in-place. See the documentation here:...
How can I position my div at the bottom of its container?
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Why unsigned integer is not available in PostgreSQL?
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Aug 5 '15 at 12:58
Karl TarbeKarl Tarbe...
SQLite UPSERT / UPDATE OR INSERT
...us you get all the other features, improvements and bug fixes that usually come with a more recent release.
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How do I put two increment statements in a C++ 'for' loop?
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A common idiom is to use the comma operator which evaluates both operands, and returns the second operand. Thus:
for(int i = 0; i != 5; ++i,++j)
do_something(i,j);
But is it really a comma operator?
Now having wrote th...
Google Analytics - Failed to load resource: http://www.google-analytics.com/ga.js
...ocol-relative URL by default. This means changing
'//www.google-analytics.com/analytics.js'
into
'https://www.google-analytics.com/analytics.js'
Example:
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l...
How to use SVN, Branch? Tag? Trunk?
...a good "beginners" guide to SVN , not in the meaning of "how do I use the commands" rather; How do I control my source code?
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1030 Got error 28 from storage engine
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Mysql error "28 from storage engine" - means "not enough disk space".
To show disc space use command below.
myServer# df -h
Results must be like this.
Filesystem Size Used Avail Capacity Mounted on
/dev/vdisk 13G 13G...