does rssl*ToString add 0 in the end of returned string in RsslBuffer.data
Does rssl*ToString add 0 in the end of returned string in RsslBuffer.data so it's a proper C string? API does not mentioned that. Want to double check here.
1
Best Answer
-
Some do, some do not, it is not documented in the reference guide. Some can only be inferred from the example usage.
One function returning a C String in a RsslBuffer:
rsslDateTimeToString(&fidDateTimeBuf, RSSL_DT_DATETIME, &fidDateTimeValue);
printf("%s\n", fidDateTimeBuf.data);Another returning only a buffer:
fidStateBuf.data = (char*)alloca(stateBufLen);
fidStateBuf.length = stateBufLen;
rsslStateToString(&fidStateBuf, &fidStateValue);
printf("%.*s\n", fidStateBuf.length, fidStateBuf.data);Also some API completely ignore the apparent RsslBuffer standard signature and do return a C-String.
const char* rsslQosTimelinessToString(RsslUInt8 value)
{
switch (value)
{
case RSSL_QOS_TIME_UNSPECIFIED: return "Unspecified";
case RSSL_QOS_TIME_REALTIME: return "Realtime";
case RSSL_QOS_TIME_DELAYED_UNKNOWN: return "DelayedByUnknown";
case RSSL_QOS_TIME_DELAYED: return "DelayedByTimeInfo";
default: return "Unknown QosTimeliness";
}
}0
Answers
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I have tried to debug the rsslStateToString function. The RsslBuffer.data always contains the null termination, even though the example code uses the RsslBuffer.length to print string.
I think rssl*ToString functions should generally add the 0 at the end of string of the rsslBuffer.data.
0
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