On Thu, May 8, 2014 at 12:53 AM, Mostafa Alizadeh <m.alizade...@gmail.com>wrote:
> > Hi Marcus, > I actually have a deep, really deep, problem with data types!!!! As you > see I have a preprocessor definition which is 32 bit number. I wanna pass > it to the make!!! how could I? If I use the gnuradio type " gr_uint32", > after turning my c++-written blocks, the GRC tells me: > > *TypeError: in method 'xxxx_make', argument 1 of type 'gr_uint32'* > > I put an option to the xml file : > > *<option>* > * <name>CRC16</name>* > * <key>gr_uint32</key>* > * <opt>CRC_type:0x00011021</opt>* > *</option>* > > I know that this is not true, but I want to pass a 32-bit number to the > "make". How could I do? > > Anyone correct me if I am wrong. In xml file we use the Python data types. In usual case Python doesn't distinguish among "unsigned" or "signed" integer, this is different from c++. The casting will be intelligently handled by swig. Hence, for your case, just pass "gr_uint32" to the make() assuming your block is coded in c++. Then use "<type>int</type>" in the xml file. This solves your problem. Meanwhile, C preprocessor does not know types or C keywords.
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