• State Not Answered
  • Locked Locked
  • Replies 5 replies
  • Subscribers 21 subscribers
  • Views 1141 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

number of strings in array

Harry Balls

Hello all,

I have the following code:

const char BaudRate[][] = {"600","1200","2400","4800","9600","19200","38400","56700"};
. .
.

Idx = 0;
while (Idx++ < (sizeof(BaudRate)/sizeof(BaudRate[0]))) CheckSpeedOfLink(BaudRate[Idx]);

This code is an attempt to programmatically fill a array with selected text.

Can anyone help ?

Regards

Harry

Parents
  • 0 in reply to IB Shy

    I often have a define:

    #define NELEM(a) (sizeof(a)/sizeof(*(a)))


    since it is quite often I want loops to iterate through all elements of an array. The bad thing is that sizeof() only works if the initialization of the array is seen, so the compiler at that specific point knows the total size of the array.

    The other alternative is to have the last array element contain a zero and instead look for this zero to break the loop. This works even in a function that just gets a reference to the array, in which case sizeof() doesn't knows the total size of the array.

Reply
  • 0 in reply to IB Shy

    I often have a define:

    #define NELEM(a) (sizeof(a)/sizeof(*(a)))


    since it is quite often I want loops to iterate through all elements of an array. The bad thing is that sizeof() only works if the initialization of the array is seen, so the compiler at that specific point knows the total size of the array.

    The other alternative is to have the last array element contain a zero and instead look for this zero to break the loop. This works even in a function that just gets a reference to the array, in which case sizeof() doesn't knows the total size of the array.

Children
No data