Eric Postpischil

Eric Postpischil has asked 35 questions and find answers to 628 problems.

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About

Senior software engineer in Apple’s Vector and Numerics Group (retired).

Eric Postpischil questions

How to fix "variable previously declared 'static' redeclared 'extern' error"? [duplicate]
Is an fscanf/scanf/sscanf conversion specification with assignment suppressed not a conversion?
Is GCC warning on const qualifier correct?
Is assigning to a union member from a different member in the same union defined by the C standard?
Why is _Alignof missing from the rule about converting an array to a pointer?
Why was SIGFPE used for integer arithmetic exceptions?
Is a redeclaration of an untagged structure a compatible type?
May C evaluate with multiple floating-point formats?
How are multiple prior declarations resolved for a new declaration with extern?
Can a pointer to an incomplete type be incomplete?

Eric Postpischil answers

Fast Fourier Transform difference in result between wolframalpha and commons-math
How does the standard C preprocessor interpret "0xFFFFFFFF"?
Relative error and wobble
Over what range will integer arithmetic addition and subtraction be accurate to the integer in IEEE double precision floating point?
Is there a way to make GCC/Clang aware of inheritance in C?
c -switch "unknown" case
Empty structs in C
Converting 32-bit integer value to unsigned 16-bit integer
define macro as linenumber
Why does a negative number converted to size_t become a huge number in C?