Eric Postpischil

Eric Postpischil has asked 35 questions and find answers to 917 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

floating point addition and subtraction
How are constant stored in memory in C?
Can a header file name start with a digit?
Difference in creating a struct using malloc and without malloc
Is it enough to only restrict the "out"-(pointer-)parameters of a function?
Width of int64_t, is it always 64 bits?
GCC warns of pointer reuse after realloc
Does #define in C put the thing exactly or give spaces before and after?
floating point numbers in ASM
Returning a pointer to a static buffer