IthPattern
IthPattern(m, 0) = '\0';
IthPattern(m, Pindex(m)) = '\0';
if (IthPattern(m, 0) != '\0') {
if (IthPattern(m, 0) != '\0') {
IthPattern(m, Pindex(m)) = '\0';
IthPattern(m, 0) = '\0';
IthPattern(m, 0) = '\0';
IthPattern(m, Pindex(m)) = '\0';
IthPattern(m, 0) = '\0';
IthPattern(m, 0) = '\0';
IthPattern(m, Pindex(m)) = c;
IthPattern(m, ++Pindex(m)) = '\0';
IthPattern(m, Pindex(m)) = '\0';