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add 'append' keyword for appending to output file

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This commit is contained in:
Axel Kohlmeyer
2024-03-17 15:34:32 -04:00
parent d97c7fffac
commit 505f7b3cb4
3 changed files with 24 additions and 14 deletions
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8
src/fix_ave_chunk.cpp
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@ -193,10 +193,12 @@ FixAveChunk::FixAveChunk(LAMMPS *lmp, int narg, char **arg) :
cdof = utils::numeric(FLERR,arg[iarg+1],false,lmp);
iarg += 2;
} else if (strcmp(arg[iarg],"file") == 0) {
if (iarg+2 > narg) utils::missing_cmd_args(FLERR, "fix ave/chunk file", error);
} else if ((strcmp(arg[iarg],"file") == 0) || (strcmp(arg[iarg],"append") == 0)) {
if (iarg+2 > narg)
utils::missing_cmd_args(FLERR, std::string("fix ave/chunk ")+arg[iarg], error);
if (comm->me == 0) {
fp = fopen(arg[iarg+1],"w");
if (strcmp(arg[iarg],"file") == 0) fp = fopen(arg[iarg+1],"w");
else fp = fopen(arg[iarg+1],"a");
if (fp == nullptr)
error->one(FLERR, "Cannot open fix ave/chunk file {}: {}",
arg[iarg+1], utils::getsyserror());