C标准类型的长度bytes

　　WIN2K/VC下面：

　　[char] Size Total:1

　　[int] Size Total:4

　　[long int] Size Total:4

　　[float] Size Total:4

　　[double] Size Total:8

　　[long double] Size Total:8

　　[double point]Size Total:4

　　[char point] Size Total:4

　　WIN2K/dev-c++下面 &

　　Ubuntu8.10 gcc 下面：

[char] Size Total:1

[int] Size Total:4

[long int] Size Total:4

[float] Size Total:4

[double] Size Total:8

[long double] Size Total:12

[double point]Size Total:4

[char point] Size Total:4

SUN Ultra10 Solairs8(32bit)GUNgcc:

[char] Size Total:1

[int] Size Total:4

[long int] Size Total:4

[float] Size Total:4

[double] Size Total:8

[long double] Size Total:16

[double point]Size Total:4

[char point] Size Total:4

　　结论 long double类型，Solairs的gcc下最长；VC最短。科学计算慎用VC。

#include

#include

main()

{

char c;

int i;

long int j;

float k;

double l;

long double m;

char *cp;

double *lp;

printf("[char] Size Total:%dn",sizeof(c));

printf("[int] Size Total:%dn",sizeof(i));

printf("[long int] Size Total:%dn",sizeof(j));

printf("[float] Size Total:%dn",sizeof(k));

printf("[double] Size Total:%dn",sizeof(l));

printf("[long double] Size Total:%dn",sizeof(m));

printf("[double point]Size Total:%dn",sizeof(cp));

printf("[char point] Size Total:%dn",sizeof(lp));

printf("nThe done.n");

getc(stdin);

}