diff options
Diffstat (limited to 'data/c.m4')
| -rw-r--r-- | data/c.m4 | 27 |
1 files changed, 27 insertions, 0 deletions
@@ -17,6 +17,33 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. + +# b4_tocpp(STRING) +# ---------------- +# Convert STRING into a valid C macro name. +m4_define([b4_tocpp], +[m4_toupper(m4_bpatsubst(m4_quote($1), [[^a-zA-Z0-9]+], [_]))]) + + +# b4_cpp_guard(FILE) +# ------------------ +# A valid C macro name to use as a CPP header guard for FILE. +m4_define([b4_cpp_guard], +[b4_tocpp(m4_defn([b4_prefix])/[$1])]) + + +# b4_cpp_guard_open(FILE) +# b4_cpp_guard_close(FILE) +# ------------------------ +# Open/close CPP inclusion guards for FILE. +m4_define([b4_cpp_guard_open], +[#ifndef b4_cpp_guard([$1]) +# define b4_cpp_guard([$1])]) + +m4_define([b4_cpp_guard_close], +[#endif b4_comment([!b4_cpp_guard([$1])])]) + + ## ---------------- ## ## Identification. ## ## ---------------- ## |