diff options
Diffstat (limited to 'libdecnumber/decNumber.c')
| -rw-r--r-- | libdecnumber/decNumber.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/libdecnumber/decNumber.c b/libdecnumber/decNumber.c index a086327d72d..039d19a4592 100644 --- a/libdecnumber/decNumber.c +++ b/libdecnumber/decNumber.c @@ -964,13 +964,13 @@ decNumberNormalize (decNumber * res, const decNumber * rhs, decContext * set) /* Specification restriction: abs(n) must be <=999999999 */ /* ------------------------------------------------------------------ */ decNumber * -decNumberPower (decNumber * res, decNumber * lhs, - decNumber * rhs, decContext * set) +decNumberPower (decNumber * res, const decNumber * lhs, + const decNumber * rhs, decContext * set) { decNumber *alloclhs = NULL; /* non-NULL if rounded lhs allocated */ decNumber *allocrhs = NULL; /* .., rhs */ decNumber *allocdac = NULL; /* -> allocated acc buffer, iff used */ - decNumber *inrhs = rhs; /* save original rhs */ + const decNumber *inrhs = rhs; /* save original rhs */ Int reqdigits = set->digits; /* requested DIGITS */ Int n; /* RHS in binary */ Int i; /* work */ @@ -1117,6 +1117,7 @@ decNumberPower (decNumber * res, decNumber * lhs, /* we'll invert the lhs now rather than inverting the result later */ if (decNumberIsNegative (rhs)) { /* was a **-n [hence digits>0] */ + decNumber * newlhs; decNumberCopy (&dnOne, dac); /* dnOne=1; [needed now or later] */ #if DECSUBSET if (set->extended) @@ -1138,13 +1139,14 @@ decNumberPower (decNumber * res, decNumber * lhs, status |= DEC_Insufficient_storage; break; } - lhs = alloclhs; /* use the allocated space */ + newlhs = alloclhs; /* use the allocated space */ } else - lhs = (decNumber *) lhsbuff; /* use stack storage */ + newlhs = (decNumber *) lhsbuff; /* use stack storage */ /* [lhs now points to buffer or allocated storage] */ - decNumberCopy (lhs, dac); /* copy the 1/lhs */ + decNumberCopy (newlhs, dac); /* copy the 1/lhs */ decNumberCopy (dac, &dnOne); /* restore acc=1 */ + lhs = newlhs; #if DECSUBSET } #endif |