error: unknown type name 'intptr_t'

Question

I am receiving this error while compiling a C program in MinGW. As far as I know, I thought 'intptr_t' was a type in the C99 standard. Am I not including a file?

In my case, it was a wrong msys2 setup. I had success with Visual Studio 2019. — koppor, Oct 04 '20 at 20:04

score 23 · Accepted Answer · answered Jan 28 '12 at 00:57

23

You need to include stdint.h.

Note that intptr_t and uintptr_t are indeed C99 types but they are optional.

answered Jan 28 '12 at 00:57

ouah

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error: unknown type name 'intptr_t'

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