DOKK / manpages / debian 13 / libbson-doc / bson_append_double.3.en
BSON_APPEND_DOUBLE(3) libbson BSON_APPEND_DOUBLE(3)

#define BSON_APPEND_DOUBLE(b, key, val) \

bson_append_double (b, key, (int) strlen (key), val) bool bson_append_double (bson_t *bson,
const char *key,
int key_length,
double value);


  • bson: A bson_t.
  • key: An ASCII C string containing the name of the field.
  • key_length: The length of key in bytes, or -1 to determine the length with strlen().
  • value: A double value to append.

The bson_append_double() function shall append a new element to a bson document of type double.

Returns true if the operation was applied successfully. The function will fail if appending value grows bson larger than INT32_MAX.

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May 7, 2025 1.30.4