Scm_StringToNumber 2198 src/gauche.h   SCM_EXTERN ScmObj Scm_StringToNumber(ScmString *str, int radix, int strict);
Scm_StringToNumber  885 src/read.c         ScmObj num = Scm_StringToNumber(s, 10, TRUE);
Scm_StringToNumber  894 src/read.c         ScmObj num = Scm_StringToNumber(s, 10, TRUE);
Scm_StringToNumber 1307 src/stdlib.c    SCM_RESULT = (Scm_StringToNumber(obj, radix, FALSE));