我试图从test.vert
文件中读取,但VS一直在我的字符串缓冲区的开头给我一些垃圾字符,如下所示:
我不得不移动指针3个位置以获得正确的字符串,以便一切正常工作。这里发生了什么?
这是一个文件读取功能。我首先尝试了我的,然后在网上复制了其他一些但结果是一样的:
char* filetobuf(char *file)
{
FILE *fptr;
long length;
char *buf;
fptr = fopen(file, "r"); /* Open file for reading */
if (!fptr) /* Return NULL on failure */
return NULL;
fseek(fptr, 0, SEEK_END); /* Seek to the end of the file */
length = ftell(fptr); /* Find out how many bytes into the file we are */
buf = (char*)calloc(length + 1,1); /* Allocate a buffer for the entire length of the file and a null terminator */
fseek(fptr, 0, SEEK_SET); /* Go back to the beginning of the file */
fread(buf, length, 1, fptr); /* Read the contents of the file in to the buffer */
fclose(fptr); /* Close the file */
buf[length] = 0; /* Null terminator */
return buf; /* Return the buffer */
}