search for: cstr

I've been creating some R tools that manipulate objective functions for optimization. In so doing, I create a character string with R code, and then want to have it in my workspace. Currently -- and this works fine -- I write the code out, then use source() to bring it in again. Example: cstr<-"jack<-function(x){\n cat(\"Silly x:\")\n print(x) \n }\n" write(cstr, file='tfile.txt') jack<-source('tfile.txt')$value # You need the value element! print(jack) However, I feel it would be more elegant if I could avoid the file, and am sure I must...

Hi, Sorry for bothering you guys again. I got problem when I am trying to recover the Global Variable Initial value. What I did is like the following ConstantArray *Cstr = dyn_cast<ConstantArray>(gI->getInitializer()); // the above instruction enable me to get the content of initial string of global variable, like char a[10] ="test global"; And then I make some change for the Cstr and write it back to the global variable by gI->setInitialize...

...> > 1. Read the string data as a constant (It's an instance of ConstantArray, > which you get form the Globalvaraible with getInitializer() as you are > doing. Following your suggestion, I got some progress. Thanks again. But I am still stuck in some problems. Constant *Cstr = GV->getInitializer(); After that, I tried to use a. for(unsigned i=0;i<Cstr->getNumOperands();++i){ Cstr->getOperand(i); } b. for(User::op_iterator I=Cstr->op_begin(),E=Cstr->op_end(); I!=E;++I){ std::cerr<<*I;...

Hi, I got a problem when I am trying to insert a call function with pointer arguments. The function C proto-type is the following, void stat_func(char *); >ConstantArray *Cstr = dyn_cast<ConstantArray>(gI->getInitializer()); ...... >Function *exFunc = M->getOrInsertFunction("stat_func", Type::VoidTy, PointerType::get(Type::SByteTy),0); >std::vector<Value*> Args(1); >Args[0] = constantArray::get(Cstr->getAsString()); >CallInst *...

...randKey =(gI->getInitializer()); } } } void DecodeStr::DecodeString(Module *M){ std::cerr<<"filename "<<M->getModuleIdentifier()<<endl; for(Module::giterator gI = M->gbegin(),gE=M->gend();gI!=gE;++gI){ unsigned i=0; if(ConstantArray *Cstr = dyn_cast<ConstantArray>(gI->getInitializer())){ if(Cstr->getType()->getElementType()->isInteger()) { std::vector<Constant*> HideString; Constant *Key=ConstantInt::get(Cstr->getType()->getElementType(),randKey); for(unsigned i=0;i<Cstr->getNumO...

If I run a docker image with the mesos containerizer and altering the dovecot config mentioned here[1] I think the root detection is incorrect because it looks like dovecot is still thinking it is root. I still get errors like: >> log(829825): Fatal: We couldn't drop root group privileges (wanted=10053(dovecot), gid=0(root), egid=0(root)) Why does it want to drop to root, if we

...ollow VB program to compute the time when check files' property Operation System: Windows 2000 professional // ... Set objFSO = CreateObject("Scripting.FileSystemObject") thistime = thisnow If objFSO.FileExists(fn) Then totle = totle & "Check file time " & CStr(thisnow - thistime) + " ms" + vbCrLf thistime = thisnow Set objFile = objFSO.GetFile(fn) totle = totle & "Get object time " & CStr(thisnow - thistime) + " ms" + vbCrLf thistime = thisnow temp = DateValue(CStr(objFile.DateLastModified)) totle = totle...

...self.current >= self.list.size { + None + } else { + let elem = unsafe { self.list.ptr.offset(self.current as isize) }; + self.current += 1; + Some(elem) + } + } +} + +fn arg_string_list(v: &[&str]) -> Result<Vec<ffi::CString>, Error> { let mut w = Vec::new(); for x in v.iter() { let y: &str = x; - let s = ffi::CString::new(y).unwrap(); - w.push(s.as_ptr()); + w.push(ffi::CString::new(y)?); + } + Ok(w) +} + +fn free_string_list(l: *const *const c_char) { + fo...

FYI, I am building on alpine 3.10 and 3.11 I am getting this build[1] error. I think these header files of dovecot are not correct. Or are they? I changed line 35 in /usr/include/dovecot/str.h from str_append_max(str, cstr, max_len); to str_append_max(str, (const char *)cstr, max_len); [1] /usr/include/dovecot/str.h: In function 'void str_append_n(string_t*, const void*, size_t)': /usr/include/dovecot/str.h:35:22: error: invalid conversion from 'const void*' to 'const char*' [-fpermissive...

...the implementation can be tuned later. About the interface: + PooledStringPtr intern(const std::string &Str); Instead of taking an std::string, please provide two versions: PooledStringPtr intern(const char *StrStart, const char *StrEnd); and: PooledStringPtr intern(const char *CStr) { return intern(CStr, CStr+strlen(CStr); } This discourages string abuse/copying: std::string is not very efficient. Also, in PooledStringPtr, please make the accessor not return an std::string. //===-- gc-5-funattr.patch (+120 -47) -------------------------===// Adds these methods to F...

Thanks for your reply. After I change Cstr to gI, it compiled successfully. Thanks again. Another question is for constructing getelementpt. // C code char gStrA[10] = "test str"; // here is Global variable,gStrA and initializer "test str" char gStrB[10]= "test str2"; main(){ int = i; char *pGVars[20...

Dear all, I am trying to write an AsmParser and a CodeEmitter for simple ADD instruction. Here is what I have in the TestGenInstrInfo.td: *extern const MCInstrDesc TestInsts[] = {...{ 23, 3, 1, 0, 0, 0, 0x0ULL, nullptr, nullptr, OperandInfo13, 0, nullptr }, // Inst #23 = ADD8_rr...}* I parse the instruction successfully but I am not sure what I did wrong that the Size (as you can see in

...ashmap (l: *const *const c_char) -> collections::HashMap<String, String> { + let mut map = collections::HashMap::new(); + let mut iter = NullTerminatedIter::new(l); + while let Some(key) = iter.next() { + if let Some(val) = iter.next() { + let key = unsafe { ffi::CStr::from_ptr(key) }.to_str().unwrap(); + let val = unsafe { ffi::CStr::from_ptr(val) }.to_str().unwrap(); + map.insert(key.to_string(), val.to_string()); + } else { + panic!(\"odd number of items in hash table\"); + } + } + map +} + +fn st...

Patch 9 is a kind of dumping ground of all kinds of stuff. It may be better to spend some time with git rebase -i trying to work this into more coherent patches. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live

...8] c"data.u\00" @g_touch_window_y = global i32 0 @_language_text = global %string zeroinitializer @"Hello\00" = internal constant [6 x i8] c"Hello\00" @is_foreign_lang = global i1 false @"english\00" = internal constant [8 x i8] c"english\00" @"cstr\00" = internal constant [5 x i8] c"cstr\00" declare %string* @to__PZ6string__PKc(i8*) nounwind declare void @AddPointer__v__iPKci(i32, i8*, i32) nounwind declare void @dL__v__PZ6string(%string*) nounwind declare zeroext i1 @ne__b__PZ6stringPZ6string(%string*, %string*) nounwind...

...; return Err(NbdError::from_libnbd());"; + "}"; + ] + in + let trans = + match ret with + | RBool + | RErr + | RFd + | RInt + | RInt64 -> [] + | RConstString -> [ + "let ret = unsafe { CStr::from_ptr(ret) };"; + "let ret = ret.to_str().unwrap();"; + ] + | RString -> [ + "let c_str = unsafe { CStr::from_ptr(ret as *const c_char) };"; + "let ret = c_str.to_string_lossy().into_owned();"; + &...

...+ } } } @@ -193,60 +198,81 @@ impl<'a, T> Iterator for RawListIter<'a, T> { } } - -fn arg_string_list (v: &Vec<&str>) -> Vec<*const i8> { - let length = v.len(); +fn arg_string_list(v: &[&str]) -> Result<Vec<ffi::CString>, Error> { let mut w = Vec::new(); for x in v.iter() { let y: &str = x; - let s = ffi::CString::new(y).unwrap(); - w.push(s.as_ptr()); + w.push(ffi::CString::new(y)?); + } + Ok(w) +} + +fn free_string_list(l: *const *const c_char) { + fo...

Hi, To speed up reading of large (few million lines) CSV files I am writing custom read functions (in C). By timing various approaches I figured out that one of the bottlenecks in reading character fields is the mkChar() function which on each call incurs a lot of garbage-collection-related overhead. I wonder if there is a "vectorized" version of mkChar, say mkChar2(char **, int

Still not working, but I took the latest patch and: - rebased it against libnbd 1.0 - fixed it so it handles new args and cbargs The generator now runs without warnings. This patch doesn't handle optargs at all. In C these are converted to non-optional parameter. Rust doesn't (AFAIK) have optional or labelled arguments unfortunately. Rich.

...optimization using Quasi-Newton Methods etc but although it is working for ordinary non-linear function, it fails in garch case. Therefore I am trying to get a step by step documentation for nlminb function. I already gone though its help page got a look on "http://netlib.bell-labs.com/cm/cs/cstr/153.pdf>". But it did not solve my problem. In this regards, can anyone give me any step-by-step approach or theory behind the calculation that 'nlminb" uses? Any help will be highly appreciable. Thanks and regards,