alphabet_mapper * alphabet_mapper::load(FILE *fp) {
uint rd;
if(fread(&rd,sizeof(uint),1,fp)!=1) return NULL;
fseek(fp,-1*sizeof(uint),SEEK_CUR);
switch(rd) {
case ALPHABET_MAPPER_NONE_HDR: return alphabet_mapper_none::load(fp);
alphabet_mapper * alphabet_mapper::load(FILE *fp) {
uint rd;
if(fread(&rd,sizeof(uint),1,fp)!=1) return NULL;
fseek(fp,-1*sizeof(uint),SEEK_CUR);
switch(rd) {
case ALPHABET_MAPPER_NONE_HDR: return alphabet_mapper_none::load(fp);