C语言 stdint.h 和 inttypes.h 的区别
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difference between stdint.h and inttypes.h
提问by mahmood
What is the difference between stdint.h and inttypes.h?
stdint.h 和 inttypes.h 有什么区别？
If none of them is used, uint64_t is not recognized but with either of them it is a defined type.
如果没有使用它们，则无法识别 uint64_t，但对于它们中的任何一个，它都是已定义的类型。
采纳答案by Ed Staub
See the wikipedia article for inttypes.h.
Use stdint.h for a minimal set of definitions; use inttypes.h if you also need portable support for these in printf, scanf, et al.
将 stdint.h 用于最少的定义集；如果您还需要在 printf、scanf 等中对这些进行便携式支持，请使用 inttypes.h。
回答by Mikko ?stlund
stdint.h
标准输入文件
Including this file is the "minimum requirement" if you want to work with the specified-width integer types of C99 (i.e. "int32_t", "uint16_t" etc.). If you include this file, you will get the definitions of these types, so that you will be able to use these types in declarations of variables and functions and do operations with these datatypes.
如果您想使用 C99 的指定宽度整数类型（即“int32_t”、“uint16_t”等），则包含此文件是“最低要求”。如果包含此文件，您将获得这些类型的定义，以便您能够在变量和函数的声明中使用这些类型并使用这些数据类型进行操作。
inttypes.h
类型.h
If you include this file, you will get everything that stdint.h provides(because inttypes.h includes stdint.h), but you will also get facilities for doing printf and scanf(and "fprintf, "fscanf", and so on.) with these types in a portable way. For example, you will get the "PRIu16" macro so that you can printf an uint16_t integer like this:
如果包含此文件，您将获得 stdint.h 提供的所有内容（因为 inttypes.h 包含 stdint.h），但您还将获得执行 printf 和 scanf（以及“fprintf”、“fscanf”等）的工具。 ) 以可移植的方式使用这些类型。例如，您将获得“PRIu16”宏，以便您可以像这样打印一个 uint16_t 整数：
#include <stdio.h>
#include <inttypes.h>
int main (int argc, char *argv[]) {
// Only requires stdint.h to compile:
uint16_t myvar = 65535;
// Requires inttypes.h to compile:
printf("myvar=%" PRIu16 "\n", myvar);
}
