SPRINTF library
A simple implementation of sprintf using the
fprintf library. Allocates an internal buffer and writes a string according to the format to the buffer. If the string is written in succession, it is appended to the previous one.SPRINTF_vInit128() allocates a 128-byte region and initializes it.After the initialization, SPRINTF_Stream becomes available.- 1.
SPRINTF_vRewind()rewinds the buffer to the beginning. - 2.Write to the internal buffer by
vfPrintf(SPRINTF_Stream, ...) - 3.Continue with
vfPrintf(SPRINTF_Stream, ...)will append to the previous output.
The internal buffer is terminated with
0x00 '\0'. The first address can be obtained with SPRINTF_pu8GetBuff(). And SPRINTF_u16Length() is used in order to get the number of characters stored in the buffer.#include <sprintf.h>
...
// initialisation
SPRINTF_vInit128(); // allocate the internal buffer of 128 bytes
...
static int iCt = 0; // some counter
// write into the internal buffer
SPRINTF_vRewind(); // rewind!
vfPrintf(SPRINTF_Stream, "HELLO %d", 1123);
vfPrintf(SPRINTF_Stream, ",GOODBYE", 1123);
uint16 u16len = SPRINTF_u16Length();
// Output (NUL-terminated, so it can be treated as a string)
vfPrintf(&sSerStream, "%003d: %s"LB,
iCt++,
SPRINTF_pu8GetBuff());