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Manual: Clarify meaning of size argument in strings.

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Jim Blandy 2020-07-30 15:09:19 -07:00
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manual/tracy.tex
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@ -737,7 +737,7 @@ When dealing with Tracy macros, you will encounter two ways of providing string
\begin{enumerate} \begin{enumerate}
\item When a macro only accepts a pointer (for example: \texttt{TracyMessageL(text)}), the provided string data must be accessible at any time in program execution (\emph{this also includes the time after exiting the \texttt{main} function}). The string also cannot be changed. This basically means that the only option is to use a string literal (e.g.: \texttt{TracyMessageL("Hello")}). \item When a macro only accepts a pointer (for example: \texttt{TracyMessageL(text)}), the provided string data must be accessible at any time in program execution (\emph{this also includes the time after exiting the \texttt{main} function}). The string also cannot be changed. This basically means that the only option is to use a string literal (e.g.: \texttt{TracyMessageL("Hello")}).
\item If there's a string pointer with a size parameter (for example: \texttt{TracyMessage(text, size)}), the profiler will allocate an internal temporary buffer to store the data. The pointed-to data is not used afterwards. You should be aware that allocating and copying memory involved in this operation has a small time cost. \item If there's a string pointer with a size parameter (for example: \texttt{TracyMessage(text, size)}), the profiler will allocate an internal temporary buffer to store the data. The \texttt{size} count should not include the terminating null character; \texttt{strlen(text)} is fine. The pointed-to data is not used afterwards. You should be aware that allocating and copying memory involved in this operation has a small time cost.
\end{enumerate} \end{enumerate}
\subsection{Specifying colors} \subsection{Specifying colors}