typedef signed short int int16_t; typedef signed int int32_t; typedef signed __INT64 int64_t; /* exact-width unsigned integer types */ typedef unsigned char uint8_t; typedef unsigned short int uint16_t; typedef unsigned int uint32_t; typedef unsigned __INT64 uint64_t; /* 7.18.1.2 ...
这是由于 typedef unsigned char uint8_t; uint8_t 实际是一个 char, cerr << 会输出 ASCII 码是 67 的字符,而不是 67 这个数字. 因此,输出 uint8_t 类型的变量实际输出的是其对应的字符, 而不是真实数字. 若要输出 67,则可以这样: cerr<< "field=" << (uint16_t) fieldID <<endl; 结果是:...
00025typedefunsigned char uint8_t; 00026 00027typedefint int16_t; 00028typedefunsigned int uint16_t; 00029 00030typedeflong int32_t; 00031typedefunsigned long uint32_t; 00032 00033typedeflong long int64_t; 00034typedefunsigned long long uint64_t; 00035 00036typedefint16_t intptr_t; 00037type...
typedef signed short int int16_t; typedef signed int int32_t; typedef signed __INT64 int64_t; /* exact-width unsigned integer types */ typedef unsigned char uint8_t; typedef unsigned short int uint16_t; typedef unsigned int uint32_t; typedef unsigned __INT64 uint64_t; /* 7.18.1.2 ...
uint8_t、uint16_t、uint32_t和uint64_t这些无符号整数类型在计算机编程中具有着不可替代的重要性。它们能够满足不同场景下对数值范围和精度的要求，为程序员提供了丰富的选择。合理地选择和使用这些数据类型，将有助于提高程序的性能和可靠性，从而推动计算机技术的发展。通过本文的介绍，希望读者对uint8_t/uint...
1字节 uint8_t 2字节 uint16_t 4字节 uint32_t 8字节 uint64_t 这些数据类型是 C99 中定义的，具体定义在：/usr/include/stdint.h ISO C99: 7.18 Integer types <stdint.h> /* There is some amount of overlap with <sys/types.h> as known by inet code */ #ifndef __int8_t_...
浅析uint8_tuint16_tuint32_tuint64_t 简单来说，uint8_t / uint16_t / uint32_t /uint64_t这些数据类型都只是别名⽽来，具体如下：⼀、C语⾔数据基本类型 在C语⾔中有6种基本数据类型：short、int、long、float、double、char 1）整型：short int、int、long int 2）浮点型：float、double ...
1 .uint8_t / uint16_t / uint32_t / uint64_t 是什么 答:是使用typedef给类型起得别名。 2. uint8_t / uint16_t / uint32_t / uint64_t 占用几个字节 答: 1字节 uint8_t 2字节 uint16_t 4字节 uint32_t 8字节 uint64_t
uint16_t %hu uint32_t %u uint64_t %llu 5、uint8_t类型的输出: 注意uint8_t的定义为 typedef unsigned char uint8_t; uint8_t实际上是一个char。所以输出uint8_t类型的变量实际上输出其对应的字符,而不是数值。例: uint8_t num = 67; cout << num << endl; 输出结果:C编辑...
1字节 uint8_t 2字节 uint16_t 4字节 uint32_t 8字节 uint64_t 这些数据类型是 C99 中定义的,具体定义在:/usr/include/stdint.h ISO C99:7.18Integer types <stdint.h>/*There is some amount of overlap with <sys/types.h> as known by inet code*/#ifndef __int8_t_defined ...