Helper class for writing format format to the << operator of mwx::stream. In the library, it is alias defined as Using format=mwx::mwx_format;.
Serial << format("formatted print: %.2f", (double)3123 / 100.) << mwx::crlf;
// formatted print: 31.23[改行]The maximum number of arguments that can be registered in the variable number argument list is 8. 64-bit parameters such as double and uint64_t type are limited in number. If the limit is exceeded, a compile error will result due to static↵_assert.
fctprintf() at the point operator << is called to write data to the streamThe constructor stores the format pointer and parameters. The subsequent call with the << operator interprets the format and processes the output.
| Parameters | Description |
|---|---|
fmt |
Format format. See TWESDK/TWENET/current/src/printf/README.md |
... |
Parameters according to the format format. * The maximum number of parameters is 4. 5 or more parameters will result in a compile error. * Since consistency with the format is not checked, it is not safe for inconsistent input. |
The fmt must remain accessible until this object is destroyed.