Missing stdint.h

[Noel]

Hello,

I am trying to remake an nrf52 project in Keil and ran into a problem regarding stdint.h. There is already an "include <stdint.h>" statement and Keil has not reported any errors regarding it missing that file; however, it does report errors, such as,

main.c(60): error: #20: identifier "i" is undefined

for (uint8_t i = 0; i < 40; ++i)

bsp.c(123): error: #268: declaration may not appear after executable statement in block

uint32_t buttons = ~NRF_GPIO->IN;

bsp.c(124): error: #268: declaration may not appear after executable statement in block

uint32_t cnt;

that make me think that it can't find it. Is this the case, and, if so, any suggestions as to how to approach it besides downloading a new stdint.h file and adding it to my local repository? I feel like there is a setting I haven't made in Keil that may be the cause of it.

Thanks,

Noel Teku

[Eirik Midttun]

Actually the error is here (in bold): for (uint8_t i = 0; i < 40; ++i). This is legal in C99, but not in earlier versions. In C90 you need to write:

uint8_t i;
for (i = 0; i < 40; ++i)

Or, as the compiler says "declaration may not appear after executable statement in block".

[Noel]

Thank you! I realized that I forgot to enter C99 Mode so that is exactly why it was thinking it was an error.