order « byte « C Data Type Q&A

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C Data Type Q&A » byte » order

1. What happens if ntohl() is called with an integer that is already in host byte order? stackoverflow.com

If I use ntohl() on an integer which is already in host byte order will that cause any problems? If not, how does the ntohl() function know its argument is already in ...

2. how to change byte order of 128 bit number stackoverflow.com

I have an array of unsigned char that represents a 128 bit number in network byte order. How would I go about converting this to host byte order efficiently (in this ...

3. convert struct to host byte order cboard.cprogramming.com

#include #include #include #include typedef struct packet { uint8_t pack_type; uint16_t pack_crc; uint32_t pack_src; uint8_t pack_dest[10]; uint8_t pack_data[5]; } packet_t; packet_t * received_buffer(char *buffer) { // buffer is received from the network packet_t *result; result = memcpy(result, buffer, sizeof(result)); /* I want some code here to transforme all my struct from network byte order to host byte ...

4. byte and bit order question cboard.cprogramming.com

hi: i am just learning about the stuff on byte/bit order and got a question. following my pervious post, someone gave me a example of what +1. and -1. looks like in memroy in the little endian format For instance (little endian), in memory - negative 1.0 looks like: 00 00 80 BF while positive 1.0 looks like: 00 00 80 ...

5. How to choose high/low order byte of a 16 bit integer? forums.devshed.com

I was just asking because I seem to recall a hardware design lab in school where we had to set bits and I could have sworn there was a very simple way to select the high order byte of a two byte word; something like "hi(val) |= 0x00FF & hex_value;" where "hi" is obviously not the call, but anyway, it's not ...

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