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author | Cyrille Bagard <nocbos@gmail.com> | 2021-02-20 00:26:09 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2021-02-20 00:26:09 (GMT) |
commit | 66b8d57f0c054065894ab3dd0f1640594013e441 (patch) | |
tree | a31cb44088c67d6fe9ee7aa36c67261a6cbd14b4 /src/analysis/types/literal.c | |
parent | 9ac491cba6aa35959fa1ffdb9ce979060f5f6b26 (diff) |
Compute a hash value for data types.
Diffstat (limited to 'src/analysis/types/literal.c')
-rw-r--r-- | src/analysis/types/literal.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/analysis/types/literal.c b/src/analysis/types/literal.c index 3a9e5cf..addab5a 100644 --- a/src/analysis/types/literal.c +++ b/src/analysis/types/literal.c @@ -64,6 +64,9 @@ static void g_literal_type_dispose(GLiteralType *); /* Procède à la libération totale de la mémoire. */ static void g_literal_type_finalize(GLiteralType *); +/* Calcule une empreinte pour un type de données. */ +static guint g_literal_type_hash(const GLiteralType *); + /* Crée un copie d'un type existant. */ static GDataType *g_literal_type_dup(const GLiteralType *); @@ -100,6 +103,7 @@ static void g_literal_type_class_init(GLiteralTypeClass *klass) type = G_DATA_TYPE_CLASS(klass); + type->hash = (type_hash_fc)g_literal_type_hash; type->dup = (type_dup_fc)g_literal_type_dup; type->to_string = (type_to_string_fc)g_literal_type_to_string; @@ -202,6 +206,34 @@ GDataType *g_literal_type_new(GDataType *orig, const literal_value *value) /****************************************************************************** * * +* Paramètres : type = type à consulter. * +* * +* Description : Calcule une empreinte pour un type de données. * +* * +* Retour : Valeur arbitraire sur 32 bits, idéalement unique par type. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static guint g_literal_type_hash(const GLiteralType *type) +{ + guint result; /* Empreinte à renvoyer */ + + result = g_data_type_hash(type->orig); + + if (g_basic_type_get_base(G_BASIC_TYPE(type->orig)) == BTP_FLOAT) + result ^= g_double_hash((gdouble []){ type->value.float_val }); + else + result ^= g_int_hash((gint []){ type->value.int_val }); + + return result; + +} + + +/****************************************************************************** +* * * Paramètres : type = type à dupliquer. * * * * Description : Crée un copie d'un type existant. * |