5.1.1. Indentation¶

Use good indentation.

Indent with tabs. The tab size can be set by each user to its preferred value. This means that tabs should not be used to align anything but only to indent. If you need to align, use spaces.

Try to maintain line size bellow 80 for tab size of 4.

5.1.2. Brackets¶

Brackets are placed at the end of the line after a if, for... One exception is made for the function where the open bracket is placed on the next line.

Closing brackets are placed at the beginning of the line. It is possible to put it on the same line in case of then.

If a code block contains only one instruction, this block should use brackets or should be put on the same line to avoid errors.

void function(void)
{
    if (cond) {
        action;
    } else if (cond) {
        action;
    }
    else {
        action;
    }

    do {
        action;
    } while (cond);

    if (cond) action;
}

5.1.3. Spaces¶

For the function calls, no space after the name of the function and each parameter is separated by a comma and a space.

function(param1, param2, param3);

In a expression between parenthesis, add a space before it.

if (condition)
if (param == 0)
if (!param)
if (table[elt] == NULL || table[elt] != 42)
if ((p1 == 2) && (p2 == 5))

5.1.4. Modules¶

Use good modular design and good error detection.

5.1.5. Comments¶

Use C comments /* ... */.