Calculate the size of an array at run time
In c language there is no direct way to calculate the size of an array at run time;
For example:
int array[10] = {1,2,3,4,54,6,7,8,9,3}
To calculate the size of above array at run time:
int size = sizeof(array) / sizeof(array[0]);
sizeof(array) = 20 for 16 bit (2 Byte) compiler
sizeof(array) = 40 for 32 bit (4 Byte) compiler
sizeof(array[0]) = 2 for 16 bit (2 Byte) compiler
sizeof(array[0]) = 4 for 32 bit (4 Byte) compiler
// For 16 Bit compiler
size = 20 / 2
size = 10
//For 32 Bit Compiler
size = 40 / 4 for 32 Bit
size = 10
What is sizeof() ?
By +Dixit Singla
