调试断言在fread()失败

Question

test.bin的大小为7,01,760字节.我试图在缓冲区bufferPointer中将此文件中的日期读作"短".

short * bufferPointer=NULL; 
// ==> ANSWER WAS ADDING: bufferPointer = ( short*)malloc(350880); <==
FILE *fp=fopen(" test.bin","rb");
fread(bufferPointer,sizeof(short),350880 ,fp); 
fclose(fp);

我在fread()得到Debug Assertion Failed.为什么？

MSVC2010,Windows-7-32位

Answer 1

您为缓冲区分配了350880个字节,但尝试读取350880个短路.尝试

bufferPointer = malloc(350880 * sizeof *bufferPointer);

(注意,没有必要使用malloc,因为它可以隐藏bug,所以不赞成.)

你还应该检查你的malloc,fopen和fread调用是否有错误.