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gitypeinfo: Add GI_TYPE_TAG_IS_NUMERIC macro

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This is a convenience for bindings that want to perform a similar action
for all numeric types. It allows more expressive code in some cases:

if (GI_TYPE_TAG_IS_NUMERIC(tag)) {
  do_one_thing();
  return;
}

switch (tag) {
  case GI_TYPE_TAG_ARRAY:
    do_other_thing();
    return;
  /* ... */
  default:
    g_assert_not_reached();
}

instead of listing out all of the numeric types in the switch statement.
This commit is contained in:
Philip Chimento 2022-01-28 13:19:59 -08:00 committed by Emmanuele Bassi
parent 6583ad7f4f
commit 75b48f1dbe
2 changed files with 12 additions and 2 deletions
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10
gitypeinfo.h
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@ -48,6 +48,16 @@ G_BEGIN_DECLS
*/
#define G_TYPE_TAG_IS_BASIC(tag) (tag < GI_TYPE_TAG_ARRAY || tag == GI_TYPE_TAG_UNICHAR)
/**
* GI_TYPE_TAG_IS_NUMERIC:
* @tag: a type tag
*
* Checks if @tag is a numeric type. That is, integer or floating point.
*
* Since: 1.72
*/
#define GI_TYPE_TAG_IS_NUMERIC(tag) ((tag) >= GI_TYPE_TAG_INT8 && (tag) <= GI_TYPE_TAG_DOUBLE)
GI_AVAILABLE_IN_ALL
const gchar* g_type_tag_to_string (GITypeTag type);

4
gitypes.h
View File

@ -411,7 +411,7 @@ typedef enum {
/* Basic types */
GI_TYPE_TAG_VOID = 0,
GI_TYPE_TAG_BOOLEAN = 1,
GI_TYPE_TAG_INT8 = 2,
GI_TYPE_TAG_INT8 = 2, /* Start of GI_TYPE_TAG_IS_NUMERIC types */
GI_TYPE_TAG_UINT8 = 3,
GI_TYPE_TAG_INT16 = 4,
GI_TYPE_TAG_UINT16 = 5,
@ -420,7 +420,7 @@ typedef enum {
GI_TYPE_TAG_INT64 = 8,
GI_TYPE_TAG_UINT64 = 9,
GI_TYPE_TAG_FLOAT = 10,
GI_TYPE_TAG_DOUBLE = 11,
GI_TYPE_TAG_DOUBLE = 11, /* End of numeric types */
GI_TYPE_TAG_GTYPE = 12,
GI_TYPE_TAG_UTF8 = 13,
GI_TYPE_TAG_FILENAME = 14,