9.4 __alignof__ |
GCC-Specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
Aggregate initializer elements for automatic variables |
Standard C99, Standard C++. |
C99, C++, GNU C90, GNU C99, GNU C++. |
Alternate keywords |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
asm keyword a |
Standard C++. |
C++, GNU C90, GNU C++. |
Assembler labels |
- |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
Case ranges |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Cast of a union |
GCC-specific. |
GNU C90, GNU C99. |
Character escape sequence |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Compound literals |
Standard C99. |
C99, GNU C90, GNU C99, GNU C++. |
Conditional statements with omitted operands |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Designated initializers |
Standard C99. |
C99, GNU C90, GNU C99, GNU C++. |
Dollar signs in identifiers |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Extended lvalues b |
Standard C++. |
C++, GNU C90, GNU C99, GNU C++. |
9.28 Function attributes |
- |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.154 GNU built-in functions |
- |
- |
Inline functions |
Standard C99, Standard C++. |
C99, C++, GNU C90, GNU C99, GNU C++. |
Labels as values |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Pointer arithmetic on void pointers and function pointers |
GCC-specific. |
GNU C90, GNU C99. |
Statement expressions |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
Unnamed embedded structures or unions |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
9.29 __attribute__((alias)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.56 __attribute__((aligned)) type attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.61 __attribute__((aligned)) variable attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.30 __attribute__((always_inline)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.31 __attribute__((const)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
|
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.62 __attribute__((deprecated)) variable attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.33 __attribute__((destructor[(priority)])) function
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.34 __attribute__((format)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.35 __attribute__((format_arg(string-index))) function
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.36 __attribute__((malloc)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.37 __attribute__((noinline)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.38 __attribute__((no_instrument_function)) function
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.40 __attribute__((nonnull)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.41 __attribute__((noreturn)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.43 __attribute__((nothrow)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.57 __attribute__((packed)) type attribute |
GCC-specific. |
GNU C90, GNU C99, GNU C++. |
9.64 __attribute__((packed)) variable attribute |
GCC-specific. |
C90, C99, GNU C90, GNU C99, GNU C++. |
9.45 __attribute__((pure)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.65 __attribute__((section("name"))) variable attribute |
GCC-specific. |
C99, GNU C90, GNU C99, GNU C++. |
9.47 __attribute__((sentinel)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
|
GCC-specific. |
GNU C90, GNU C99. |
9.66 __attribute__((unused)) variable attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.67 __attribute__((used)) variable attribute |
GCC-specific. |
C90, C99, GNU C90, GNU C99. |
9.68 __attribute__((visibility("visibility_type"))) variable
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.51 __attribute__((warn_unused_result)) |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.52 __attribute__((weak)) function attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.69 __attribute__((weak)) variable attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.53 __attribute__((weakref("target"))) function
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
9.70 __attribute__((weakref("target"))) variable
attribute |
GCC-specific. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
Variadic macros |
Standard C99. |
C90, C99, C++, GNU C90, GNU C99, GNU C++. |
Zero-length arrays |
GCC-specific. |
GNU C90, GNU C99. |