Displaying 1 result from an estimated 1 matches for "myroundcal".
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myroundcall
2010 Mar 29
2
.Call and .C arguments
...se see the two simple examples to understand the issue.
# C call from R
.C("myroundC",as.double(1204.245))
// C Code
void myroundC(double *Amount){
*Amount = Rf_fround(*Amount,2);
}
#Return value in R
[[1]]
[1] 1204.24
# C call from R
.Call("myroundCall",as.double(1204.245))
// C Code
SEXP myroundCall(SEXP a){
double *ap = REAL(a), *ansp;
SEXP ans;
PROTECT(ans = allocVector(REALSXP, 1));
ansp = REAL(ans);
*ansp = Rf_fround(*ap,2);
UNPROTECT(1);
ret...