NAME

KS_PASTE, KS_OPTIONAL — preprocessor macros

SYNOPSIS

#include <libks/preprocessor.h>

KS_PASTE(prefix, suffix);

KS_OPTIONAL(optional, fallback);

DESCRIPTION

The preprocessor macros can be used to mitigate shortcomings of the C preprocessor.

The KS_PASTE() macro concatenates prefix and suffix into a single token. Both arguments are macro expanded before being concatenated.

extern int KS_PASTE(unused_, __LINE__);

The KS_OPTIONAL() macro expands to optional if not empty, fallback otherwise. Both arguments are macro expanded. Intended to be used in conjunction with variadic macros in order to give the optional argument a default value.

KS_OPTIONAL(1, 0); /* 1 */
KS_OPTIONAL(, 0);  /* 0 */

AUTHORS

Anton Lindqvist <anton@basename.se>