get size of double array?

[TurboMetrologist]

Hi,

Are double arrays able to contain null values? Also, what is the double array equivalent to strlen( )?

Sorry for the noobish questions!

Thanks

[Wolfgang]

Hi,

If you mean NULL, remember that NULL is defined as ((void *)0), i.e. a pointer. 

If you want to obtain the size of an array, you can use sizeof ( array ) / sizeof ( double ).

Hth,

Wolfgang 

[Al_S]

Or more generically

sizeof(array)/sizeof(array[0]);

[TurboMetrologist]

My apologies, that is very helpful, but what I meant to ask is how would I query the amount of elements in a double array?

for example:

double rhoArray[]={.118,.040,.025,.014,.007,.005,.004,.003,.002,.002,.003,.005,.012,.016,.020,.023,.021,.020};

numElements = strlen(rhoArray);

[Al_S · Accepted solution]

I'm not sure what you're asking.

sizeof(array) tells you how much space the entire array takes.

sizeof(array[0]) tells you how much space one array element takes.

sizeof(array) / sizeof(array[0]) tells you how many elements are in the array.

Anything else?

[Marro77]

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