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FairCom DB provides conversion routines between UTF‑8 and UTF‑16. The input strings are assumed to be terminated by a NULL character. All output buffer sizes are specified in bytes. The conversion routines return CTDBRET_OK (0) on success, error VBSZ_ERR (153) if the output buffer is too small, or error BMOD_ERR (446) if there is a problem with the input string.
ctdb_u8TOu16() converts an ASCII or UTF-8 encoded string to a UTF-16 Unicode string:
NINT ctdb_u8TOu16(pTEXT u8str, pWCHAR u16str, NINT u16size);
c-treeDB API C API Example
WCHAR buffer[256];
switch (ctdb_u8TOu16("tablename", buffer, sizeof(buffer))
{
case CTDBRET_OK:
{
printf("UTF-8 to UTF-16 conversion ok\n");
break;
}
case VBSZ_ERR:
{
printf("Conversion buffer is too small\n");
break;
}
case BMOD_ERR:
{
printf("Problem occurred during conversion\n");
break;
}
default:
{
printf("Unknown error code\n");
break;
}
}
ctdb_u16TOu8() converts a UTF-16 encoded string to a UTF-8 Unicode string:
NINT ctu16TOu8(pWCHAR u16str, pTEXT u8str, NINT u8size);
c-treeDB API C API Example
TEXT buffer[512];
switch (ctdb_u16TOu8(tableName, buffer, sizeof(buffer))
{
case CTDBRET_OK:
{
printf("UTF-16 to UTF-8 conversion ok\n");
break;
}
case VBSZ_ERR:
{
printf("Conversion buffer is too small\n");
break;
}
case BMOD_ERR:
{
printf("Problem occurred during conversion\n");
break;
}
default:
{
printf("Unknown error code\n");
break;
}
}
