Eric Postpischil

Eric Postpischil has asked 35 questions and find answers to 826 problems.

Stats

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

What does this obfuscated C example do?
Hook setenv(), getenv() using C code during runtime to make them thread safe [closed]
Does const char* alias with char*?
c - understanding floating point binary model
Reduce two similar functions to avoid repetition
Set bit until a certain index
C Double Literal NaN with Payload
Is this a C language undefined behaviour? Different results in clang and GCC
How Does the Left-Hand Side (LHS) of an Assignment Evaluate in C?
mmap(), where does the memory reside in virtual space?