Fix ncontest initialization and heap storage conflict.

lib/decoder.f90

@@ -61,6 +61,7 @@ subroutine multimode_decoder(ss,id2,params,nfsample)
   my_ft8%decoded = 0
   my_ft4%decoded = 0
 
+  ncontest=iand(params%nexp_decode,7)
   single_decode=iand(params%nexp_decode,32).ne.0
   bVHF=iand(params%nexp_decode,64).ne.0
   if(mod(params%nranera,2).eq.0) ntrials=10**(params%nranera/2)
@@ -102,7 +103,6 @@ subroutine multimode_decoder(ss,id2,params,nfsample)
 
      call timer('decft8  ',0)
      newdat=params%newdat
-     ncontest=iand(params%nexp_decode,7)
      call my_ft8%decode(ft8_decoded,id2,params%nQSOProgress,params%nfqso,    &
           params%nftx,newdat,params%nutc,params%nfa,params%nfb,              &
           params%ndepth,ncontest,logical(params%nagain),                     &

lib/ft4/subtractft4.f90

@@ -16,7 +16,7 @@ subroutine subtractft4(dd,itone,f0,dt)
   integer itone(103)
   logical first
   data first/.true./
-  common/heap8/cref(NFRAME),camp(NMAX),cfilt(NMAX),cw(NMAX),xjunk(NFRAME)
+  common/heap4/cref(NFRAME),camp(NMAX),cfilt(NMAX),cw(NMAX),xjunk(NFRAME)
   save first
 
   nstart=dt*12000+1-NSPS

lib/ft4_decode.f90

@@ -28,6 +28,7 @@ contains
       use timer_module, only: timer
       use packjt77
       include 'ft4/ft4_params.f90'
+      parameter (MAXCAND=100)
       class(ft4_decoder), intent(inout) :: this
       procedure(ft4_decode_callback) :: callback
       parameter (NSS=NSPS/NDOWN,NDMAX=NMAX/NDOWN)
@@ -49,7 +50,7 @@ contains
       real bitmetrics(2*NN,3)
       real dd(NMAX)
       real llr(2*ND),llra(2*ND),llrb(2*ND),llrc(2*ND),llrd(2*ND)
-      real candidate(2,100)
+      real candidate(2,MAXCAND)
       real savg(NH1),sbase(NH1)
 
       integer apbits(2*ND)
@@ -185,7 +186,6 @@ contains
          mycall0=mycall
          hiscall0=hiscall
       endif
-      maxcand=100
       ndecodes=0
       decodes=' '
       fa=nfa
@@ -222,7 +222,7 @@ contains
          candidate=0.0
          ncand=0
          call timer('getcand4',0)
-         call getcandidates4(dd,fa,fb,syncmin,nfqso,maxcand,savg,candidate,   &
+         call getcandidates4(dd,fa,fb,syncmin,nfqso,MAXCAND,savg,candidate,   &
             ncand,sbase)
          call timer('getcand4',1)
          dobigfft=.true.