Measure the test size.

Source: Internet
Author: User

You can see a method for testing the size of a cu, and write it down:

A program for testing the size of the kernel, which is very good and concise. Kernel skills are everywhere.
* Author: qqbsd
* Email:
# Include stdio. h>
Static union {char c [4]; unsigned long l;} endian_test = {'l ','? ','? ',' B '}};
# Define ENDIANNESS (char) endian_test.l)
Int main (void)
If (c = 'l ')
Printf ("little endian. \ n ");
Else if (c = 'G ')
Printf ("big ednian. \ n ");
Printf ("error. c = % c \ n", c );
Return 0;



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