diff options
| author | Yishuai Li | 2020-09-24 03:41:37 -0400 |
|---|---|---|
| committer | Yishuai Li | 2020-12-03 13:06:20 -0500 |
| commit | aab8634bcda7829004c369644e9d4600692913f0 (patch) | |
| tree | ab2bc06ce37fb6d1075cf37a412b4117f9fb2a69 /theories | |
| parent | afbc39d8c4f24e2e8ccda0fcb861fb947f3f4c71 (diff) | |
Ascii: add leb and ltb
Diffstat (limited to 'theories')
| -rw-r--r-- | theories/Strings/Ascii.v | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/theories/Strings/Ascii.v b/theories/Strings/Ascii.v index 06b02ab211..37d30a282c 100644 --- a/theories/Strings/Ascii.v +++ b/theories/Strings/Ascii.v @@ -173,6 +173,14 @@ Proof. apply N_ascii_bounded. Qed. +Definition ltb (a b : ascii) : bool := + (N_of_ascii a <? N_of_ascii b)%N. + +Definition leb (a b : ascii) : bool := + (N_of_ascii a <=? N_of_ascii b)%N. + +Infix "<?" := ltb : char_scope. +Infix "<=?" := leb : char_scope. (** * Concrete syntax *) |