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Altera_Forum
Honored Contributor I
925 Views

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
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2 Replies
Altera_Forum
Honored Contributor I
138 Views

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
Novice
82 Views

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'.

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