U.11.1 C Mode Motion Commands

This section describes commands for moving point, in C mode and related modes.

C-c C-u

Move point back to the containing preprocessor conditional, leaving the mark behind. A prefix argument acts as a repeat count. With a negative argument, move point forward to the end of the containing preprocessor conditional. When going backwards, #elif is treated like #else followed by #if. When going forwards, #elif is ignored.

C-c C-p

Move point back over a preprocessor conditional, leaving the mark behind. A prefix argument acts as a repeat count. With a negative argument, move forward.

C-c C-n

Move point forward across a preprocessor conditional, leaving the mark behind. A prefix argument acts as a repeat count. With a negative argument, move backward.

M-a

Move point to the beginning of the innermost C statement (c-beginning-of-statement). If point is already at the beginning of a statement, move to the beginning of the preceding statement. With prefix argument n, move back n - 1 statements.

If point is within a string or comment, or next to a comment (only whitespace between them), this command moves by sentences instead of statements.

When called from a program, this function takes three optional arguments: the numeric prefix argument, a buffer position limit (don't move back before that place), and a flag that controls whether to do sentence motion when inside of a comment.

M-e

Move point to the end of the innermost C statement; like M-a except that it moves in the other direction (c-end-of-statement).

M-x c-backward-into-nomenclature

Move point backward to beginning of a C++ nomenclature section or word. With prefix argument n, move n times. If n is negative, move forward. C++ nomenclature means a symbol name in the style of NamingSymbolsWithMixedCaseAndNoUnderlines; each capital letter begins a section or word.

In the GNU project, we recommend using underscores to separate words within an identifier in C or C++, rather than using case distinctions.

M-x c-forward-into-nomenclature

Move point forward to end of a C++ nomenclature section or word. With prefix argument n, move n times.