Scm_Sha1Class      19 ext/digest/sha1.c  SCM_CLASS_DECL(Scm_Sha1Class);
Scm_Sha1Class      21 ext/digest/sha1.c  SCM_DEFINE_BUILTIN_CLASS(Scm_Sha1Class,
Scm_Sha1Class      25 ext/digest/sha1.c  #define SCM_CLASS_SHA1      (&Scm_Sha1Class)
Scm_Sha1Class      43 ext/digest/sha1.c    Scm_InitStaticClass(&Scm_Sha1Class, "<sha1-context>", mod, NULL, 0);