我已经在这段代码上工作了一段时间,但我遇到了一个似乎无法调试的段错误。以下是相关代码:
typedef struct Halo* Halo;
struct Halo
{
float x, y, z;
float vx, vy, vz;
int n200a;
float m200a;
float r200a;
int n200c;
float m200c;
float r200c;
int n500a;
float m500a;
float r500a;
int n500c;
float m500c;
float r500c;
};
全局变量:
光环 *halo_catalog;
失败的功能:
int loadHaloCatalog(char *filename)
{
FILE *catalog_file;
long long halo_num;
catalog_file = fopen(filename, "rb");
if (catalog_file == NULL) {
printf("Could not open halo catalog: %s\n", filename);
return -1;
}
if (fread(&halo_num, sizeof(long long), 1, catalog_file) < 0) {
printf("Could not read number of halos\n");
return -1;
}
halo_catalog = (Halo *)calloc(halo_num, sizeof(struct Halo));
if (fread(halo_catalog, sizeof(struct Halo), halo_num, catalog_file) < 0) {
printf("Could not read that number of halos\n");
return -1;
}
printf("%f\n", halo_catalog[10000]->x);
printf("done\n");
fclose(catalog_file);
return (int)halo_num;
}
它在 "printf("%f\n", halo_catalog[10000]->x);" 上失败 行,或对 fread 调用后分配的内存的任何其他访问。我知道我传入了一个有效文件,因为它可以正确读取 halo_num。它还从 fread 调用中收集有关 Halo 对象的正确信息,就像我调用 fread 并检查返回时它返回 halo_num 一样。
谢谢!