keil中编译stdint.h报错 identifier "__int8" is undefined

[kobesdu]

RT

建立的工程里包含stdint.h这个文件。但是编译是报错。。。
类似的错误很多。但是这个文件是我网上下载的，为什么会有问题？

..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(69): error: #20: identifier "__int8" is undefined
typedef __int8 int8_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(70): error: #20: identifier "__int16" is undefined
typedef __int16 int16_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(71): error: #20: identifier "__int32" is undefined
typedef __int32 int32_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(73): error: #65: expected a ";"
typedef unsigned __int8 uint8_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(74): error: #65: expected a ";"
typedef unsigned __int16 uint16_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(75): error: #65: expected a ";"
typedef unsigned __int32 uint32_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(83): error: #20: identifier "uint8_t" is undefined
typedef uint8_t uint_least8_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(84): error: #20: identifier "uint16_t" is undefined
typedef uint16_t uint_least16_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(85): error: #20: identifier "uint32_t" is undefined
typedef uint32_t uint_least32_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(93): error: #20: identifier "uint8_t" is undefined
typedef uint8_t uint_fast8_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(94): error: #20: identifier "uint16_t" is undefined
typedef uint16_t uint_fast16_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stdint.h(95): error: #20: identifier "uint32_t" is undefined
typedef uint32_t uint_fast32_t;
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_wwdg.h(85): error: #20: identifier "uint32_t" is undefined
void WWDG_SetPrescaler(uint32_t WWDG_Prescaler);
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_wwdg.h(86): error: #20: identifier "uint8_t" is undefined
void WWDG_SetWindowValue(uint8_t WindowValue);
..\Libraries\STM32F4xx_StdPeriph_Driver\inc\stm32f4xx_wwdg.h(88): error: #20: identifier "uint8_t" is undefined

[of123]

试试 typedef signed char __int8; 要是还报错，那就要怀疑编译器了。

[kobesdu]

引用 3 楼 of123 的回复:

试试 typedef signed char __int8; 要是还报错，那就要怀疑编译器了。

好的，谢谢！ 我用的是 keil uvision 5，不知道是不是不合适。

[of123]

加上 typedef char __int8; typedef unsigned char __uint8; typedef short __int16; typedef unsigned short __uint16; typedef int __int32; typedef unsigned int __uint32;

[kobesdu]

引用 1 楼 of123 的回复:

加上 typedef char __int8; typedef unsigned char __uint8; typedef short __int16; typedef unsigned short __uint16; typedef int __int32; typedef unsigned int __uint32;

谢谢~ 可是我加上之后，这几句报错。错误有 cannot conbine with previous“ char ”declaration specifier declaration does declared anything。。。 是我有什么头文件没有包含吗？

[dceacho]

检查下stdint.h是不是重复包含了