D 2014-06-17T05:14:55.251
L Documentation
N text/x-markdown
P 6510a3168ed2b29e2d2673e89315affef19d3fcd
U rkeene
W 1494
Manual Page
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`package require tcc4tcl`
tcc4tcl::cproc
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Creates a Tcl procedure that calls C code.
Synopsis:
1. `tcc4tcl::cproc <procName> <argList> <returnType> <code>`
1. `<procName>` is the name of the Tcl procedure to create
1. `<argList>` is a list of arguments and their types for the C function;
1. The list is in the format of: type1 name1 type2 name2 ... typeN nameN
1. The supported types are:
1. Tcl_Interp*: Must be first argument, will be the interpreter
1. int
1. long
1. float
1. double
1. char*
1. Tcl_Obj*: Passes the Tcl object in unchanged
1. void*
1. `<returnType>` is the return type for the C function
1. The supported types are:
1. void: No return value
1. ok: Return TCL\_OK or TCL_ERROR
1. int
1. long
1. float
1. double
1. char*: TCL_STATIC string (immutable from C)
1. string, dstring: TCL_DYNAMIC string (mutable from C)
1. vstring: TCL_VOLATILE string (mutable from C)
1. default: Tcl_Obj*, a Tcl Object
1. `<code>` is the C code that comprises the function
Example:
1. Create a Tcl procedure called "add" which accepts 2 integers (a, b) and returns a long:
1. `tcc4tcl::cproc add {int a int b} long { return(a+b); }`
tcc4tcl::ccode
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tcc4tcl::cdata
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Z a7e54a482f07971415b989bf2000736b