Strange behavior of std::string find method in SS12

Question

Hi
I faced with strange behavior of std::string.find method while compiling with Sunstudio12.
Compiler: CC: Sun C++ 5.9 SunOS_sparc Patch 124863-14 2009/06/23
Platform: SunOS xxxxx 5.10 Generic_141414-07 sun4u sparc SUNW,Sun-Fire-V250
Sometimes find method does not work, especially when content of string is larger than several Kb and it is needed to find pattern from some non-zero position in the string
For example, I have some demonstration program which tries to parse PDF file.
It loads PDF file completely to a string and then iterately searches all ocurrences of "obj" and "endobj".
If I compile it with GCC from Solaris - it works
If I compile it with Sunstudio12 and standard STL - does not work
If I compile it with Sunstudio12 and stlport - it works.
On win32 it always works fine (by VStudio or CodeBlocks)
Is there any limitation of standard string find method in Sunstudio12 STL ?
See below the code of tool.
Compilation: CC -o teststr teststr.cpp
You can use any PDF files larger than 2kb as input to reproduce the problem.
In this case std::string failes to find "endobj" from some position in the string,
while this pattern is located there for sure.
Example of output:
CC -o teststr teststr.cpp
teststr in.pdf Processing in.pdf
Found object:1
Broken PDF, endobj is not found from position1155
#include <string>
#include <iostream>
#include <fstream>
using namespace std;
bool parsePDF (string &content, size_t &position)
    position = content.find("obj",position);
    if( position == string::npos ) {
        cout<<"End of file"<<endl;
        return false;
    position += strlen("obj");
    size_t cur_pos = position;
    position = content.find("endobj",cur_pos);
    if( position == string::npos ){
        cerr<<"Broken PDF, endobj is not found from position"<<cur_pos<<endl;;
        return false;
    position += strlen("endobj");
    return true;
int main(int argc, char ** argv)
    if( argc < 2 ){
        cout<<"Usage:"<<argv[0]<<" [pdf files]\n";
        return -3;
    else {
        for(int i = 1;i<argc;i++) {
            ifstream pdfFile;
            pdfFile.open(argv,ios::binary);
if( pdfFile.fail()){
cerr<<"Error opening file:"<<argv[i]<<endl;
continue;
pdfFile.seekg(0,ios::end);
int length = pdfFile.tellg();
pdfFile.seekg(0,ios::beg);
char *buffer = new char [length];
if( !buffer ){
cerr<<"Cannot allocate\n";
continue;
pdfFile.read(buffer,length);
pdfFile.close();
string content;
content.insert(0,buffer,length);
delete buffer;
// the lets parse the file and find all endobj in the buffer
cout<<"Processing "<<argv[i]<<endl;
size_t start = 0;
int count = 0;
while( parsePDF(content,start) ){
cout<<"Found object:"<<++count<<"\n";
return 0;

Answer 1

Well, there is definitely some sort of problem here, maybe in string::find, but possibly elsewhere in the library.
Please file a bug report at [http://bugs.sun.com] and we'll have a look at it.