Understanding sizeof(char) in 32 bit C compilers

Question

(sizeof) char always returns 1 in 32 bit GCC compiler.

But since the basic block size in 32 bit compiler is 4, How does char occup

Answer 1

Sample code demonstrating structure alignment:

struct st 
{
int a;
char c;
};

struct stb
{
int a;
char c;
char d;
char e;
char f;
};

struct stc
{
int a;
char c;
char d;
char e;
char f;
char g;
};

std::cout<

The size of the struct is bigger than the sum of its individual components, since it was set to be divisible by 4 bytes by the 32 bit compiler. These results may be different on different compilers, especially if they are on a 64 bit compiler.