How does “while(*s++ = *t++)” copy a string?

by

It is equivalent to this:

while (*t) {
    *s = *t;
    s++;
    t++;
}
*s = *t;

When the char that t points to is '\0', the while loop will terminate. Until then, it will copy the char that t is pointing to to the char that s is pointing to, then increment s and t to point to the next char in their arrays.

More Related Contents:

  1. break statement doesn’t work in a loop [closed]
  2. How to convert from seconds to nanoseconds in a timeval struct?
  3. How can I correctly assign a new string value?
  4. Undefined reference to pthread_create in Linux
  5. Declaring a C function to return an array
  6. What common algorithms are used for C’s rand()?
  7. What does the C standard say about bitshifting more bits than the width of type?
  8. Mapping a numeric range onto another
  9. How to use EOF to run through a text file in C?
  10. How to get function’s name from function’s pointer in Linux kernel?
  11. When / How does Linux load shared libraries into address space?
  12. Platform independent size_t Format specifiers in c?
  13. Function pointer cast to different signature
  14. Reading a text file backwards in C
  15. shared global variables in C
  16. Return char[]/string from a function [duplicate]
  17. When to use pthread_exit() and when to use pthread_join() in Linux?
  18. Why changing value of SO_RCVBUF doesn’t work?
  19. What does -fwrapv do?
  20. How to remove all occurrences of a given character from string in C?
  21. Static vs global
  22. What primitive data type is time_t? [duplicate]
  23. C: How to wrap a float to the interval [-pi, pi)
  24. Does pow() work for int data type in C? [duplicate]
  25. 3 plus symbols between two variables (like a+++b) in C [duplicate]
  26. Why is this VLA (variable-length array) definition unreliable?
  27. How to render text in SDL2?
  28. Why do you need an explicit `-lm` compiler option? [duplicate]
  29. Cast T[][] to T*
  30. C fundamentals: double variable not equal to double expression?

Leave a Comment