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我试图简单地将浮点值数组写入文件，然后将其读回。
我曾尝试直接从数组中写入它，但是在读回它时，我一直遇到长度大于 153 的数组的问题。为了清楚起见，代码示例一个一个地写入每个浮点值。

对于索引大于或等于 153 的值，它们的值是 153.0，它们应该是 153.0, 154.0, 155.0, ...

为什么这段代码对我不起作用？

  int length = 160;

  char* fileName = "testFile.dat";

  // Write data to file

  FILE* file = fopen (fileName, "w");

  for(int i = 0; i< length; i++){
    // We are just storing the indices, so value at i is equal to i
    float f = (float) i;
    fwrite(&f, sizeof(float), 1, file);
  }

  fclose(file);

  // Read data from file into results array

  file = fopen(fileName, "r");

  float* results = new float[length];

  for(int i = 0; i< length; i++){
    float f;
    fread(&f, sizeof(float), 1, file);
    results[i] = f;
  }

  fclose(file);

  // Now check data in results array

  bool fail = false;

  for(int i = 0; i< length; i++){
    if(results[i]!=(float)i){
      fail = true; // This should not be hit, but it is!
    }
  }

  delete [] results;

谢谢，戴夫

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1 回答 1

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FILE* file = fopen (fileName, "wb");
FILE* file = fopen (fileName, "rb");
于 2011-01-13T13:23:35.937 回答