Scm_BignumToUI64 2050 src/gauche.h   SCM_EXTERN ScmUInt64 Scm_BignumToUI64(ScmBignum *b, int clamp, int *oor);
Scm_BignumToUI64  586 src/number.c           return Scm_BignumToUI64(SCM_BIGNUM(obj), clamp, oor);
Scm_BignumToUI64  598 src/number.c               return Scm_BignumToUI64(SCM_BIGNUM(b), clamp, oor);
Scm_BignumToUI64  614 src/number.c           return Scm_BignumToUI64(SCM_BIGNUM(obj), clamp, oor);