• Daniel Horn (36/36) Apr 30 2004 $ dmc vec.d
• Daniel Horn (36/36) Apr 30 2004 So I tried to rewrite my last code, and I can't get it working for a

Daniel Horn <hellcatv hotmail.com> writes:

$ dmc vec.d
Assertion failure: 'd' on line 3154 in file 'mtype.c'

when I compile the following program:


struct vec(VALUE, int size){
   enum {nvalues=1}
   VALUE [size]f;
   VALUE* getAt(uint i) {
     return i<size?&f[i]:&f[size-1];
   }
   VALUE opIndex(uint i, VALUE v) {
     return (*getAt(i))=v;
   }
   VALUE opIndex(uint i) {
     return i<size?f[i]:f[size-1];
   }
   template T(zvec) {
     zvec castTo() {
        zvec ret;
        for (int i=max(ret.nvalues-1,size-1);i>=0;i--) {
           ret[i]=this[i];
        }
        return ret;
     }
   }
}
alias vec!(float,1) float1;
alias vec!(float,4) float4;

int main (char[][]args) {
   float1 a;
   float4 b;
   b[0]=1,b[1]=2,b[2]=3,b[3]=4;
   a[1]=3;
   b=a.T(float4).castTo();// <-- taking out this line stops the error

   printf ("%f\n",b[1000]);
   return 0;
}

Daniel Horn <hellcatv hotmail.com> writes:

So I tried to rewrite my last code, and I can't get it working for a 
DIFFERENT reason (though the template way is the right way)

it complains:

"template instance vec!(float,4) vec is not a template declaration"
am I doing something wrong this time? last time I was pretty sure my 
code was kosher.


struct vec(VALUE, int size){
   enum {nvalues=1}
   VALUE [size]f;
   VALUE* getAt(uint i) {
     return i<size?&f[i]:&f[size-1];
   }
   VALUE opIndex(uint i, VALUE v) {
     return (*getAt(i))=v;
   }
   VALUE opIndex(uint i) {
     return i<size?f[i]:f[size-1];
   }
   vec!(float,4) castFloat4 () {
      vec!(float,4) ret;
      for (int i=max(ret.nvalues-1,size-1);i>=0;i--) {
         ret[i]=this[i];
      }
      return ret;
   }

}
alias vec!(float,1) float1;
alias vec!(float,4) float4;

int main (char[][]args) {
   float1 a;
   float4 b;
   b[0]=1,b[1]=2,b[2]=3,b[3]=4;
   a[1]=3;

   printf ("%f\n",b[1000]);
   return 0;
}