How to select multiple elements in an array with C?
17,765
There's nothing built-in that does it, you need to write a loop. Don't forget that array indexes start at 0.
int all_positive = 1;
int i;
for (i = 0; i < 10; i++) {
if (myArray[i] <= 0) {
all_positive = 0;
break;
}
}
if (all_positive) {
printf("Thank you for providing positive numbers!\n");
}
Author by
Terryn
Updated on June 04, 2022Comments
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Terryn about 2 years
Is there a way to select multiple elements in array using one line of code in C? For instance, say I had the following code (assuming I already asked the user for twenty numbers, the first ten I asked to be positive and the last ten I asked to be negative):
if (myArray[0 through 9] > 0) { printf("Thank you for providing positive numbers!"); } else { printf("Sorry, please try again!"); } if (myArray[10 through 19] < 0) { printf("Thank you for providing negative numbers!"); } else { printf("Sorry, please try again!"); }
What code could I substitute for "through"? I am fairly new to this language, and have never heard of a way of doing so. I know that with this particular code I could make two arrays, one for the positive numbers and one for the negative numbers, but I am curious to know for other programming projects.
Thank you for reading and answering!
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Terryn almost 10 yearsOkay thank you I wasn't sure if there was or not, so I will use loops instead. And thank you for pointing out that I wrote one instead of zero! I will fix that.
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David Ranieri almost 8 yearsIt seems that you are answering another question.