pmsprintf(3) — Linux manual page

PMSPRINTF(3)             Library Functions Manual            PMSPRINTF(3)

NAME         top

       pmsprintf - formatted string conversion

C SYNOPSIS         top

       #include <pcp/pmapi.h>

       int pmsprintf(char *str, size_t size, const char *fmt,
                     ... /*args*/);

       cc ... -lpcp

DESCRIPTION         top

       Safe string formatting interface that wraps the vsnprintf(3) call.

       It  differs primarily in that pmsprintf guarantees that the output
       buffer str will be null-terminated even when the  provided  buffer
       size  is  insufficient  to  contain the formatted string.  In this
       case a null-terminated truncated string will be returned in str.

       In the case of a failure in the underlying vsnprintf interface,  a
       null-terminated  empty string will be returned in str, and the re‐
       turn value will be zero.

DIAGNOSTICS         top

       On successful completion, pmsprintf returns the number of  charac‐
       ters written to the supplied buffer, not including the null termi‐
       nator.

       The return code is always zero or more, never negative.

SEE ALSO         top

       vsnprintf(3), pmprintf(3) and PMAPI(3).

COLOPHON         top

       This  page is part of the PCP (Performance Co-Pilot) project.  In‐
       formation about the project can be found at  ⟨http://www.pcp.io/⟩.
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Performance Co-Pilot               PCP                       PMSPRINTF(3)

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