class ctest{public: CString(const char *str) { *this+=str; // crash :S } ~CString() { } operator+=(const char*str) { for(size_t i=0; i<strlen(str); i++) { vec.push_back(str); } }private: vector<char>vec;};void print(ctest str){ //...}Quote:Original post by codder88
i have
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When i close the application it crash :S maybe i need to release something?
Quote:Original post by SimonForsmanQuote:Original post by codder88
i have
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When i close the application it crash :S maybe i need to release something?
hmm, i'm not sure about this but, what are the operator precedance for += and dereferencing ? (you might be adding the char pointer to this before you dereference it which would be a likely cause for a crash)
try:
(*this)+=str;
and see if that helps.
class ctest{public: ctest(const char *str) { *this+=str; } ~ctest() { } ctest& operator+=(const char*str) { for(size_t i=0; i<strlen(str); i++) { vec.push_back(str); } return *this; }private: vector<char>vec;};Quote:Original post by Wooh
Does it even compile? You call your class ctest but your constructor and destructor is called CString. operator+= needs a return type. After fixing these errors it compiles and works fine.
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Quote:Original post by codder88Quote:Original post by Wooh
Does it even compile? You call your class ctest but your constructor and destructor is called CString. operator+= needs a return type. After fixing these errors it compiles and works fine.
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It's still crashing...
Quote:Original post by codder88And it's still not caused by the code you're posting.
It's still crashing...
Quote:Original post by iMalcQuote:Original post by codder88And it's still not caused by the code you're posting.
It's still crashing...
There are all sorts of way the rest of your code can cause an error to show up here.
Your best options are to make a cut down minimal compile example program that produces the problem. Remove everything that isn't necessary to produce the problem.
Or you could learn to use your debugger and examine the call stack. What compiler/IDE?
One way or another, we need more info!
Quote:Original post by codder88Quote:Original post by iMalcQuote:Original post by codder88And it's still not caused by the code you're posting.
It's still crashing...
There are all sorts of way the rest of your code can cause an error to show up here.
Your best options are to make a cut down minimal compile example program that produces the problem. Remove everything that isn't necessary to produce the problem.
Or you could learn to use your debugger and examine the call stack. What compiler/IDE?
One way or another, we need more info!
I'm using VC++... I compiled in debug mode and there is an assertion failed
Expression: _CrtIsValidHeapPointer(pUserData)
The char* what i pass to ctest is valid...
How to fix it?
Quote:Original post by iMalc
still not caused by the code you're posting.
Quote:Original post by phresnelQuote:Original post by iMalc
still not caused by the code you're posting.
How could we know?
