const char* concatenation

by

In your example one and two are char pointers, pointing to char constants. You cannot change the char constants pointed to by these pointers. So anything like:

strcat(one,two); // append string two to string one.

will not work. Instead you should have a separate variable(char array) to hold the result. Something like this:

char result[100];   // array to hold the result.

strcpy(result,one); // copy string one into the result.
strcat(result,two); // append string two to the result.

More Related Contents:

  1. C++ equivalent of StringBuffer/StringBuilder?
  2. Concatenating strings doesn’t work as expected [closed]
  3. How should one use std::optional?
  4. QVector vs QList
  5. What is a good naming convention for vars, methods, etc in C++? [closed]
  6. Are lambdas inlined like functions in C++?
  7. What is activation record in the context of C and C++?
  8. Copying non null-terminated unsigned char array to std::string
  9. What is the performance implication of converting to bool in C++?
  10. c++ standard practice: virtual interface classes vs. templates
  11. Are destructors run when calling exit()? [duplicate]
  12. How does sizeof know the size of the operand array?
  13. Forcing NVIDIA GPU programmatically in Optimus laptops
  14. Do I really have to worry about alignment when using placement new operator?
  15. Windows C/C++ Crypto API Examples and tips
  16. C++ linking error after upgrading to Mac OS X 10.9 / Xcode 5.0.1
  17. Getline keeps on getting newline character. How can I avoid this?
  18. how to specify vc11 lambda calling convention
  19. Initialize a reference – warning C4355: ‘this’ : used in base member initializer list
  20. Partial specialization of function templates
  21. OpenSSL::SSL_library_init() memory leak
  22. Optimize template replacement of a switch
  23. Why are designated initializers not implemented in g++
  24. Authenticating users using Active Directory in Client-Server Application
  25. Dynamic dispatching of template functions?
  26. How to output array of doubles to hard drive?
  27. Compiling code containing dynamic parallelism fails
  28. Fast divisibility tests (by 2,3,4,5,.., 16)?
  29. Why can’t I assign an array variable directly to another array variable with the ‘=’ operator?
  30. Why does an lvalue cast work?

Leave a Comment