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Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

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

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

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    9 years ago

    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's avatar
    LucasM
    Icon for New Contributor rankNew Contributor
    4 years ago

    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'.