bson_vsnprintf (3) Linux Manual Page
bson_vsnprintf() – Like bson_snprintf() but allows for variadic parameters.
Synopsis
int
bson_vsnprintf (char *str,
size_t size,
const char *format,
va_list ap) BSON_GNUC_PRINTF (3, 0);
Parameters
- str
- A location for the resulting string.
- size
- The size of str in bytes.
- format
- A printf style format string.
- ap
- A va_list of parameters for the format.