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New posts in c23
How is a qsort allocation failure handled?
Nov 02, 2025
c
gcc
clang
qsort
c23
Is it legal to empty-initialize `va_list` with `{}` in C23 before calling `va_start()`?
Nov 02, 2025
c
initialization
language-lawyer
variadic-functions
c23
Check if array is a VLA at compile-time
Oct 31, 2025
c
variable-length-array
c23
fixed-length-array
Is there such a thing as "function attribute correctness"?
Nov 01, 2025
c
c23
function-attributes
does offsetof work with typeof if type is new?
Oct 31, 2025
c
typeof
offsetof
c23
Why is strnlen() not considered for inclusion in C23?
Oct 30, 2025
c
language-lawyer
c-strings
c23
No more reserved identifiers in C23?
Oct 26, 2025
c
keyword
identifier
c23
What is the alignment requirement of malloc(1)
Oct 26, 2025
c
malloc
language-lawyer
memory-alignment
c23
Grouping sets of 4 bits into nybbles in C printf
Oct 23, 2025
c
binary
printf
literals
c23
Can you use a pointer representing a virtual object as the key in bsearch?
Oct 23, 2025
c
c23
bsearch
How to print constexpr in C23 at compile-time?
Oct 02, 2025
c
macros
arm
preprocessor
c23
C23 constexpr int cannot be defined using a constexpr float or double
Sep 16, 2025
c
constexpr
c23
Are char* and void* interchangeable in a certain sense?
Sep 14, 2025
c
types
c23
Are int main() and int main(void) equivalent prototypes in C23?
Sep 15, 2025
c
language-lawyer
function-prototypes
c23
What is the purpose of the new C23 #embed directive?
Sep 14, 2025
c
language-lawyer
c23
Function pointer compatibility between single pointer and empty parameter lists
Sep 05, 2025
c
language-lawyer
c99
c23
realloc(ptr, 0) in C23 - now what?
Sep 04, 2025
c
language-lawyer
realloc
c23
C2x: 6.9.2 External object definitions: why is "shall not be an incomplete type" placed in Semantics rather than in Constraints?
Nov 08, 2022
c
constraints
language-lawyer
semantics
c23
What are source and execution character sets?
Sep 03, 2025
c
c23
Why isn't the keyword false an integer constant expression in gcc C23?
Sep 02, 2025
c
gcc
language-lawyer
null-pointer
c23