Tcl_Concat(3) Tcl Library Procedures Tcl_Concat(3)

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NAME

Tcl_Concat - concatenate a collection of strings

SYNOPSIS

#include <tcl.h>

const char *
Tcl_Concat(argc, argv)

ARGUMENTS

int argc (in) Number of strings.

const char *const argv[] (in) Array of strings to
concatenate. Must have argc
entries.
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DESCRIPTION

Tcl_Concat is a utility procedure used by several of the Tcl
commands. Given a collection of strings, it concatenates them
together into a single string, with the original strings separated by
spaces. This procedure behaves differently than Tcl_Merge, in that
the arguments are simply concatenated: no effort is made to ensure
proper list structure. However, in most common usage the arguments
will all be proper lists themselves; if this is true, then the
result will also have proper list structure.

Tcl_Concat eliminates leading and trailing white space as it copies
strings from argv to the result. If an element of argv consists of
nothing but white space, then that string is ignored entirely. This
white-space removal was added to make the output of the concat
command cleaner-looking.

The result string is dynamically allocated using Tcl_Alloc; the
caller must eventually release the space by calling Tcl_Free.

SEE ALSO

Tcl_ConcatObj

KEYWORDS

concatenate, strings

Tcl 7.5 Tcl_Concat(3)