请高手帮忙看段简单代码

Linux的追求者

#include <stdio.h>
int main()
{
char *fname="cv.txt";
char *cv_content;

FILE *fp;

if((fp=fopen(fname,"r"))==NULL)
{
printf("Error!--Can't open file\n");
return 0;
}
fscanf(fp,"%s",cv_content);
fclose(fp);
printf("The cv_content is :\n%s",cv_content);
return 0;
}

用gcc -o 编译
运行以后报错
Segmentation fault
想不明白。

prc

char *cv_content = malloc(1234);

Linux的追求者

warning: initialization makes pointer from integer without a cast

我试了你给出的语句，出现了警告，但是程序可以正常运行。

morris2600

没分配空间当然会core

huangwei0413

原帖由 Linux的追求者 于 2009-8-17 10:09 发表
#include
int main()
{
char *fname="cv.txt";
char *cv_content;

FILE *fp;

if((fp=fopen(fname,"r"))==NULL)
{
printf("Error!--Can't open file\n");
return 0;
}
fscanf(fp,"%s",cv_conten ...

cv_content的空间都没分配。。。

langue

Programmers new to C usally neglect the fact that they must handle memory allocation manually, via malloc(), calloc(), realloc() and free().