C++ Concatenating const char * with string, only const char * prints -


i trying cout const char *

this how convert int string , concatenate const char*

char temptextresult[100]; const char * tempscore = std::to_string(6).c_str(); const char * temptext = "score: "; strcpy(temptextresult, temptext); strcat(temptextresult, tempscore); std::cout << temptextresult;

the result when printing is: score:

does know why 6 not printing?

thanks in advance.

as docs c_str say, "the pointer returned may invalidated further calls other member functions modify object." includes destructor.

const char * tempscore = std::to_string(6).c_str();

this makes tempscore point temporary string no longer exists. should this:

std::string tempscore = std::to_string(6); ... strcat(temptextresult, tempscore.c_str());

here, you're calling c_str on string continues exist.


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