Not able to resolve "#include <stdint.h>"

Altera_Forum · ‎02-08-2017

Hi,

I am using NIOS II EDS 9.1 to generate a sample project from template.

I am able to build sample project.

Then i added below include file.

# include <stdint.h>

int main ()

{

uint32_t test;

}

I am getting below error and warnings:

error : `uint32_t' undeclared (first use in this function)

warning: stdint.h: No such file or directory

I have verified that stdint.h is present in system generated includes folder in "C:\altera\91\quartus\bin\cygwin\usr\include "

How to resolve this problem

Altera_Forum · ‎02-21-2017

The problem is that some compiler often automatically export names defined in various headers or provided types before such standards were in place.

Now, I said "may not always work." That's because the cstdint header is part of the C++11 standard and is not always available on current C++ compilers (but often is). The stdint.h header is the C equivalent and is part of C99.

LucasM · ‎05-04-2021

You can try using <alt_types.h>, which provides equivalent types to those in <stdint.h>, but prefixed with 'alt_' so 'int8_t' becomes 'alt_8' and 'uint32_t' becomes 'alt_u32'.