奇怪的问题,我跟踪了几遍,实在看不出来问题在哪里!!

[shuirh]

#include <iostream>
using namespace std;

int count(FILE *fp)
{
int sum_ = 0;

char ch = fgetc(fp);
while (ch != EOF)
{
ch = fgetc(fp);
sum_++;
}
return sum_;
cout << "该文件中的字节总数为:" << sum_ << endl;
}
main()
{
FILE *fp = fopen("update.txt", "r");
//char buf[100] = "";
char *pBuf = NULL;
char *pLookFor;
int location = 1;
int sum= count(fp);

pBuf = new char(sum + 1);
rewind(fp);
fread(pBuf, sum, 1, fp);
cout << pBuf << endl;

for (pLookFor = pBuf; pLookFor < pBuf + sum; pLookFor++)
{
if (*pLookFor == 10)
{
cout << "回车换行符的位置为:" << location << endl;
}
location++;
}
}

新建update.txt,内容为:
file1=1.0
file2=2.0
file3=1.1
file4=1.3

程序运行到cout << "回车换行符的位置为:" << location << endl;报错,跟踪变量,没看出什么,大家帮忙看看,谢谢了.

[yangch_nhcmo]

linux GCC 4.3.2 下正常运行输出

#include <iostream>
using namespace std;

int count(FILE *fp)
{
  int sum_ = 0;

  char ch = fgetc(fp);
  while (ch != EOF)
    {
      ch = fgetc(fp);
      sum_++;
    }
  cout <<  "该文件中的字节总数为:" <<  sum_ <<  endl;
  return sum_;

}
int main()
{
  FILE *fp = fopen("update.txt", "r");
  if(fp == NULL)
  {
  cout << "OPEN ERROR" << endl;
  return 1;
  }
//char buf[100] = "";
  char *pBuf = NULL;
  char *pLookFor;
  int location = 1;
  int sum = count(fp);

  //pBuf = new char(sum + 1);
  pBuf = new char[sum + 1];
  rewind(fp);
  fread(pBuf, sum, 1, fp);
  cout <<  pBuf <<  endl;

  for (pLookFor = pBuf; pLookFor < pBuf + sum; pLookFor++)
    {
      if (*pLookFor == 10)
        {
          cout <<  "回车换行符的位置为:" <<  location <<  endl;
        }
      location++;
    }
  return 0;
}

[ysysbaobei]

顶

[ljmscsq]

我在codeblocks下运行了下，没错误

[lingyin55]

up

[kevinnick]

运行成功，没有显示问题，你要把你报的什么错贴出来

[youyifang]

把这句pBuf = new char(sum + 1); 改成pBuf = new char【sum + 1】; 看看
别忘了，释放资源。

[猫已经找不回了]

运行完没错误...楼主什么编译器啊?

[topwork]

pBuf = new char(sum + 1);
写错了，因该写成
pBuf = new char[sum + 1]; 中括号