things people should stop doing

[zwol]

if (constant == variable)
if (pointer != 0)
if (pointer != NULL)
if (boolean == true)

}
else {

fprintf(stdout, ...);

printf("%s", variable);
printf("string with no substitutions");
printf("\n"); // or any other single character

Comments

[elsmi.livejournal.com]

The last three are handy for uniformity. Most errors occur when someone goes starts thinking, right?

(In particular, I'd hesitate to deprecate printf("%s", variable) when its nearest cousin -- printf(variable) -- is so very nasty. Also, printf("%s", variable) gives you protection when variable may be NULL.)

[zwol.livejournal.com]

You have an excellent point. Mainly I was grumping about those because the code I was working on couldn't even be consistent about using one of printf() and fprintf(stdout).