Question

Rewriting this For loop into a while loop:

int32_t block_poweroff(void)
	{
	uint64_t ky1, fm1;
	uint64_t cs1;
	int64_t rt1;
	for(int i = 0; i <BLOCK_MAX_TOTAL_FILES; i++){
	block_close(i); //closing all files
	}
	BlockXferRegister regAfterPowerOff = block_io_bus(BLOCK_OP_POWOFF, 0);
	unpack(regAfterPowerOff, &ky1, &fm1, &cs1, &rt1);
	return rt1;
	}

Answer 1

Rewriting this For loop into a while loop:

int32_t block_poweroff(void)

{

uint64_t ky1, fm1;

uint64_t cs1;

int64_t rt1;

int i = 0;

while(i <BLOCK_MAX_TOTAL_FILES)

{

block_close(i); //closing all files

i++;

}

BlockXferRegister regAfterPowerOff = block_io_bus(BLOCK_OP_POWOFF, 0);

unpack(regAfterPowerOff, &ky1, &fm1, &cs1, &rt1);

return rt1;

}

Description:

• For converting for loop into while loop, you need to first initialize the variable. Then specify the while condition and loop statements followed by variable increment/decrement.

• Syntax of While loop:

initialization;

while(condition)

{

loop statements;

variable increment/decrement;

}