堆栈 Objective-C NSString copy strong

 C

---

#include <stdio.h>
#include <stdlib.h>


int givar = 0;
static int sgivar = 0;
const int gcivar = 0;

int main(int argc, char const *argv[])
{

    int ivar = 0;
    const int gcivar_2 = 0;
    char cvar = 'a';
    char *string = "hello world";

    char *pa = string;
    char *pb = string;

    int *pgi = &givar;
    int *psgi = &sgivar;
    int *pi = &ivar;
    int *pmivar = (int *)malloc(sizeof(int));//m -> malloc
    char *pc = &cvar;
    const int *pgcivar = &gcivar;
    const int *pgcivar_2 = &gcivar_2;
    

    printf("string: %p, %p
", string, &string);
    printf("pa: %p, %p
", pa, &pa);
    printf("pb: %p, %p
", pb, &pb);
    printf("pgi:%p, %p
", pgi, &pgi);
    printf("psgi:%p, %p
", psgi, &psgi);
    printf("pi:%p, %p
", pi, &pi);
    printf("pc:%p, %p
", pc, &pc);
    printf("pmivar:%p, %p
", pmivar, &pmivar);
    printf("pgcivar:%p, %p
", pgcivar, &pgcivar);
    printf("pgcivar_2:%p, %p
", pgcivar_2, &pgcivar_2);

    free(pmivar);
    return 0;
}

分析如下:

 Objective-C

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 http://www.cocoachina.com/ios/20150512/11805.html