message: Finish ctype impls; Solve
diff: @@ -23,7 +23,7 @@ pub extern "C" fn isascii(c: c_int) -> c_int {
  #[no_mangle]
  pub extern "C" fn iscntrl(c: c_int) -> c_int {
  - unimplemented!();
  + ((c as c_uint) < 0x20 || c == 0x7f) as c_int
  }
  #[no_mangle]
  @@ -33,7 +33,7 @@ pub extern "C" fn isdigit(c: c_int) -> c_int {
  #[no_mangle]
  pub extern "C" fn isgraph(c: c_int) -> c_int {
  - unimplemented!();
  + (((c - 0x21) as c_uint) < 0x5e) as c_int
  }
  #[no_mangle]
  @@ -43,12 +43,12 @@ pub extern "C" fn islower(c: c_int) -> c_int {
  #[no_mangle]
  pub extern "C" fn isprint(c: c_int) -> c_int {
  - unimplemented!();
  + (((c - 0x20) as c_uint) < 0x5f) as c_int
  }
  #[no_mangle]
  pub extern "C" fn ispunct(c: c_int) -> c_int {
  - unimplemented!();
  + (isgraph(c) == 0 && !isalnum(c) == 0) as c_int
  }
  #[no_mangle]
  @@ -63,12 +63,19 @@ pub extern "C" fn isupper(c: c_int) -> c_int {
  #[no_mangle]
  pub extern "C" fn isxdigit(c: c_int) -> c_int {
  - unimplemented!();
  + (isdigit(c) == 0 || ((c as c_int) | 32) - ('a' as c_int) < 6) as c_int
  }
  #[no_mangle]
  +pub extern "C" fn isblank(c: c_int) -> c_int {
  + (c == ' ' as c_int || c == '\t' as c_int) as c_int
  +}
  +
  +#[no_mangle]
  +/// The comment in musl:
  +/// `/* nonsense function that should NEVER be used! */`
  pub extern "C" fn toascii(c: c_int) -> c_int {
  - unimplemented!();
  + c & 0x7f
  }
  #[no_mangle]
  