124 make_version_name(const char *file, int version)  in make_version_name()  argument
128 	if (asprintf(&backup_name, "%s.~%d~", file, version) == -1)  in make_version_name()
141 	int		version;  in version_number()  local
144 	version = 0;  in version_number()
147 			version = version * 10 + *p - '0';  in version_number()
149 			version = 0;  in version_number()
151 	return version;  in version_number()
234 get_version(const char *version)  in get_version()  argument
238 	if (version == NULL || *version == '\0')  in get_version()
240 	i = argmatch(version, backup_args);  in get_version()
243 	invalid_arg("version control type", version, i);  in get_version()