| author | nipkow |
| Tue, 17 Jun 2025 14:11:40 +0200 | |
| changeset 82733 | 8b537e1af2ec |
| parent 73546 | 7cb3fefef79e |
| permissions | -rw-r--r-- |
|
73546
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
1 |
(* Title: HOL/Library/Code_Target_Numeral_Float.thy |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
2 |
Author: Florian Haftmann, TU Muenchen |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
3 |
*) |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
4 |
|
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
5 |
section \<open>Preprocessor setup for floats implemented by target language numerals\<close> |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
6 |
|
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
7 |
theory Code_Target_Numeral_Float |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
8 |
imports Float Code_Target_Numeral |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
9 |
begin |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
10 |
|
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
11 |
lemma numeral_float_computation_unfold [code_computation_unfold]: |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
12 |
\<open>numeral k = Float (int_of_integer (Code_Numeral.positive k)) 0\<close> |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
13 |
\<open>- numeral k = Float (int_of_integer (Code_Numeral.negative k)) 0\<close> |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
14 |
by (simp_all add: Float.compute_float_numeral Float.compute_float_neg_numeral) |
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
15 |
|
|
7cb3fefef79e
confluent preprocessing for floats in presence of target language numerals
haftmann
parents:
diff
changeset
|
16 |
end |