我在一次读取2个字节并将其转换为无符号的短大端元组时遇到问题。
这是我当前的代码,我想打印无符号的短大端,它应该是数字25。
所以这段代码是用来读取二进制文件的,我把所有文件保存到一个缓冲区,我需要缓冲区[5]和缓冲区[6]到无符号的短大端
void read_binair(const char* filename)
{
FILE *file;
char *buffer;
unsigned long fileLen;
int i;
char character;
Level* level = level_alloc_empty();
file = fopen(filename, "rb");
if (!file)
{
fprintf(stderr, "Unable to open file %s", filename);
return;
}
fseek(file, 0, SEEK_END);
fileLen = ftell(file);
fseek(file, 0, SEEK_SET);
buffer = (char *)malloc(fileLen + 1);
if (!buffer)
{
fprintf(stderr, "Memory error!");
fclose(file);
return;
}
fread(buffer, fileLen, 1, file);
for (i = 0; i < 4; i++)
{
printf("%c", (char) buffer[i]);
}
i = buffer[4];
printf("%d", i);
//read buffer[5] and buffer[6] together as a unsigned short, big endian
fclose(file);
}
最佳答案
以下代码将在big endian中从unsigned short
创建buffer
:
unsigned short us = (buffer[5] << 8) | buffer[6];
关于c - 读取二进制文件,将2字节转换为无符号短C,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/33234082/