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Define a Macro to find total number of elements in C
Here, we are going to learn how to define a macro to find total number of elements in C programming language?
By IncludeHelp Last updated : March 10, 2024
We have to define a Macro to find total number of elements in C programming language.
Macro Definition
#define ARRAY_LEN(ARRAY_NAME, TYPE)(sizeof(ARRAY_NAME)/sizeof(TYPE))
C program to define a Macro to find total number of elements
#include <stdio.h>
#define ARRAY_LEN(ARRAY_NAME, TYPE)(sizeof(ARRAY_NAME)/sizeof(TYPE))
int main()
{
int iArr[10];
float fArr[5];
char cArr[50];
printf("Total elements in iArr: %d\n", ARRAY_LEN(iArr, int));
printf("Total elements in fArr: %d\n", ARRAY_LEN(fArr, float));
printf("Total elements in cArr: %d\n", ARRAY_LEN(cArr, char));
return 0;
}
Output
Total elements in iArr: 10
Total elements in fArr: 5
Total elements in cArr: 50
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