GNU Compiler Collection (GCC)

Keyword Index

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! in constraint - Multi-Alternative
# in constraint - Modifiers
#pragma - Pragmas
#pragma implementation, implied - C++ Interface
#pragma, reason for not using - Function Attributes
$ - Dollar Signs
% in constraint - Modifiers
%include - Spec Files
%include_noerr - Spec Files
%rename - Spec Files
& in constraint - Modifiers
' - Incompatibilities
* in constraint - Modifiers
+ in constraint - Modifiers
-lgcc, use with -nodefaultlibs - Link Options
-lgcc, use with -nostdlib - Link Options
-nodefaultlibs and unresolved references - Link Options
-nostdlib and unresolved references - Link Options
.sdata/.sdata2 references (PowerPC) - RS/6000 and PowerPC Options
// - C++ Comments
0 in constraint - Simple Constraints
< in constraint - Simple Constraints
= in constraint - Modifiers
> in constraint - Simple Constraints
? in constraint - Multi-Alternative
?: extensions - Lvalues
?: extensions - Conditionals
?: side effect - Conditionals
_ in variables in macros - Typeof
__complex__ keyword - Complex
__declspec(dllexport) - Function Attributes
__declspec(dllimport) - Function Attributes
__func__ identifier - Function Names
__FUNCTION__ identifier - Function Names
__imag__ keyword - Complex
__PRETTY_FUNCTION__ identifier - Function Names
__real__ keyword - Complex
__thread - Thread-Local
_Complex keyword - Complex
ABI - Compatibility
accessing volatiles - Volatiles
Ada - G++ and GCC
Ada - G++ and GCC
address constraints - Simple Constraints
address of a label - Labels as Values
alias attribute - Function Attributes
aliasing of parameters - Code Gen Options
aligned attribute - Variable Attributes
aligned attribute - Type Attributes
alignment - Alignment
alloca vs variable-length arrays - Variable Length
alternate keywords - Alternate Keywords
always_inline function attribute - Function Attributes
AMD x86-64 Options - i386 and x86-64 Options
AMD1 - Standards
ANSI C - Standards
ANSI C standard - Standards
ANSI C89 - Standards
ANSI support - C Dialect Options
ANSI X3.159-1989 - Standards
apostrophes - Incompatibilities
application binary interface - Compatibility
ARC Options - ARC Options
arguments in frame (88k) - M88K Options
ARM [Annotated C++ Reference Manual] - Backwards Compatibility
ARM options - ARM Options
arrays of length zero - Zero Length
arrays of variable length - Variable Length
arrays, non-lvalue - Subscripting
asm constraints - Constraints
asm expressions - Extended Asm
assembler instructions - Extended Asm
assembler names for identifiers - Asm Labels
assembler syntax, 88k - M88K Options
assembly code, invalid - Bug Criteria
attribute of types - Type Attributes
attribute of variables - Variable Attributes
attribute syntax - Attribute Syntax
autoincrement/decrement addressing - Simple Constraints
automatic inline for C++ member fns - Inline
AVR Options - AVR Options
Backwards Compatibility - Backwards Compatibility
binary compatibility - Compatibility
bit shift overflow (88k) - M88K Options
bound pointer to member function - Bound member functions
bug criteria - Bug Criteria
bugs - Bugs
bugs, known - Trouble
built-in functions - C Dialect Options
built-in functions - Other Builtins
C compilation options - Invoking GCC
C intermediate output, nonexistent - G++ and GCC
C language extensions - C Extensions
C language, traditional - C Dialect Options
C standard - Standards
C standards - Standards
C++ - G++ and GCC
C++ comments - C++ Comments
C++ compilation options - Invoking GCC
C++ interface and implementation headers - C++ Interface
C++ language extensions - C++ Extensions
C++ member fns, automatically inline - Inline
C++ misunderstandings - C++ Misunderstandings
C++ options, command line - C++ Dialect Options
C++ pragmas, effect on inlining - C++ Interface
C++ source file suffixes - Invoking G++
C++ static data, declaring and defining - Static Definitions
C89 - Standards
C90 - Standards
C94 - Standards
C95 - Standards
C99 - Standards
C9X - Standards
calling functions through the function vector on the H8/300 processors - Function Attributes
case labels in initializers - Designated Inits
case ranges - Case Ranges
cast to a union - Cast to Union
casts as lvalues - Lvalues
cleanup attribute - Variable Attributes
code generation conventions - Code Gen Options
code, mixed with declarations - Mixed Declarations
command options - Invoking GCC
comments, C++ style - C++ Comments
common attribute - Variable Attributes
comparison of signed and unsigned values, warning - Warning Options
compiler bugs, reporting - Bug Reporting
compiler compared to C++ preprocessor - G++ and GCC
compiler options, C++ - C++ Dialect Options
compiler options, Objective-C - Objective-C Dialect Options
compiler version, specifying - Target Options
complex conjugation - Complex
complex numbers - Complex
compound expressions as lvalues - Lvalues
compound literals - Compound Literals
computed gotos - Labels as Values
conditional expressions as lvalues - Lvalues
conditional expressions, extensions - Conditionals
conflicting types - Disappointments
const applied to function - Function Attributes
const function attribute - Function Attributes
constants in constraints - Simple Constraints
constraint modifier characters - Modifiers
constraint, matching - Simple Constraints
constraints, asm - Constraints
constraints, machine specific - Machine Constraints
constructing calls - Constructing Calls
constructor expressions - Compound Literals
constructor function attribute - Function Attributes
contributors - Contributors
core dump - Bug Criteria
CRIS Options - CRIS Options
cross compiling - Target Options
D30V Options - D30V Options
Darwin options - Darwin Options
DBX - Interoperation
deallocating variable length arrays - Variable Length
debugging information options - Debugging Options
debugging, 88k OCS - M88K Options
declaration scope - Incompatibilities
declarations inside expressions - Statement Exprs
declarations, mixed with code - Mixed Declarations
declaring attributes of functions - Function Attributes
declaring static data in C++ - Static Definitions
defining static data in C++ - Static Definitions
dependencies for make as output - Environment Variables
dependencies for make as output - Environment Variables
dependencies, make - Preprocessor Options
deprecated attribute - Variable Attributes
deprecated attribute. - Function Attributes
designated initializers - Designated Inits
designator lists - Designated Inits
designators - Designated Inits
destructor function attribute - Function Attributes
diagnostic messages - Language Independent Options
dialect options - C Dialect Options
digits in constraint - Simple Constraints
directory options - Directory Options
divide instruction, 88k - M88K Options
dollar signs in identifier names - Dollar Signs
double-word arithmetic - Long Long
downward funargs - Nested Functions
E in constraint - Simple Constraints
earlyclobber operand - Modifiers
eight bit data on the H8/300 and H8/300H - Function Attributes
empty structures - Empty Structures
environment variables - Environment Variables
error messages - Warnings and Errors
escaped newlines - Escaped Newlines
exclamation point - Multi-Alternative
explicit register variables - Explicit Reg Vars
expressions containing statements - Statement Exprs
expressions, compound, as lvalues - Lvalues
expressions, conditional, as lvalues - Lvalues
expressions, constructor - Compound Literals
extended asm - Extended Asm
extensible constraints - Simple Constraints
extensions, ?: - Lvalues
extensions, ?: - Conditionals
extensions, C language - C Extensions
extensions, C++ language - C++ Extensions
external declaration scope - Incompatibilities
F in constraint - Simple Constraints
fatal signal - Bug Criteria
FDL, GNU Free Documentation License - GNU Free Documentation License
file name suffix - Overall Options
file names - Link Options
flexible array members - Zero Length
float as function value type - Incompatibilities
floating point precision - Optimize Options
floating point precision - Disappointments
format function attribute - Function Attributes
format_arg function attribute - Function Attributes
Fortran - G++ and GCC
forwarding calls - Constructing Calls
freestanding environment - Standards
freestanding implementation - Standards
FRV Options - FRV Options
fscanf, and constant strings - Incompatibilities
function addressability on the M32R/D - Function Attributes
function attributes - Function Attributes
function pointers, arithmetic - Pointer Arith
function prototype declarations - Function Prototypes
function without a prologue/epilogue code - Function Attributes
function, size of pointer to - Pointer Arith
functions called via pointer on the RS/6000 and PowerPC - Function Attributes
functions in arbitrary sections - Function Attributes
functions that are passed arguments in registers on the 386 - Function Attributes
functions that are passed arguments in registers on the 386 - Function Attributes
functions that behave like malloc - Function Attributes
functions that do not pop the argument stack on the 386 - Function Attributes
functions that do pop the argument stack on the 386 - Function Attributes
functions that have no side effects - Function Attributes
functions that never return - Function Attributes
functions that pop the argument stack on the 386 - Function Attributes
functions that pop the argument stack on the 386 - Function Attributes
functions which do not handle memory bank switching on 68HC11/68HC12 - Function Attributes
functions which handle memory bank switching - Function Attributes
functions with non-null pointer arguments - Function Attributes
functions with printf, scanf, strftime or strfmon style arguments - Function Attributes
G in constraint - Simple Constraints
g in constraint - Simple Constraints
G++ - G++ and GCC
GCC - G++ and GCC
GCC command options - Invoking GCC
generalized lvalues - Lvalues
global offset table - Code Gen Options
global register after longjmp - Global Reg Vars
global register variables - Global Reg Vars
GNAT - G++ and GCC
goto with computed label - Labels as Values
gp-relative references (MIPS) - MIPS Options
gprof - Debugging Options
grouping options - Invoking GCC
H in constraint - Simple Constraints
hardware models and configurations, specifying - Submodel Options
hex floats - Hex Floats
hosted environment - Standards
hosted environment - C Dialect Options
hosted environment - C Dialect Options
hosted implementation - Standards
HPPA Options - HPPA Options
i in constraint - Simple Constraints
I in constraint - Simple Constraints
i386 Options - i386 and x86-64 Options
IA-64 Options - IA-64 Options
IBM RS/6000 and PowerPC Options - RS/6000 and PowerPC Options
IBM RT options - RT Options
identifier names, dollar signs in - Dollar Signs
identifiers, names in assembler code - Asm Labels
identifying source, compiler (88k) - M88K Options
implementation-defined behavior, C language - C Implementation
implied #pragma implementation - C++ Interface
incompatibilities of GCC - Incompatibilities
increment operators - Bug Criteria
indirect calls on ARM - Function Attributes
init_priority attribute - C++ Attributes
initializations in expressions - Compound Literals
initializers with labeled elements - Designated Inits
initializers, non-constant - Initializers
inline automatic for C++ member fns - Inline
inline functions - Inline
inline functions, omission of - Inline
inlining and C++ pragmas - C++ Interface
installation trouble - Trouble
integrating function code - Inline
Intel 386 Options - i386 and x86-64 Options
interface and implementation headers, C++ - C++ Interface
intermediate C version, nonexistent - G++ and GCC
interrupt handler functions - Function Attributes
interrupt handler functions on the H8/300 and SH processors - Function Attributes
introduction - Top
invalid assembly code - Bug Criteria
invalid input - Bug Criteria
invoking g++ - Invoking G++
ISO 9899 - Standards
ISO C - Standards
ISO C standard - Standards
ISO C90 - Standards
ISO C94 - Standards
ISO C95 - Standards
ISO C99 - Standards
ISO C9X - Standards
ISO support - C Dialect Options
ISO/IEC 9899 - Standards
Java - G++ and GCC
java_interface attribute - C++ Attributes
keywords, alternate - Alternate Keywords
known causes of trouble - Trouble
labeled elements in initializers - Designated Inits
labels as values - Labels as Values
language dialect options - C Dialect Options
large bit shifts (88k) - M88K Options
length-zero arrays - Zero Length
Libraries - Link Options
link options - Link Options
LL integer suffix - Long Long
load address instruction - Simple Constraints
local labels - Local Labels
local variables in macros - Typeof
local variables, specifying registers - Local Reg Vars
locale - Environment Variables
locale definition - Environment Variables
long long data types - Long Long
longjmp incompatibilities - Incompatibilities
longjmp warnings - Warning Options
lvalues, generalized - Lvalues
m in constraint - Simple Constraints
M32R/D options - M32R/D Options
M680x0 options - M680x0 Options
M68hc1x options - M68hc1x Options
M88k options - M88K Options
machine dependent options - Submodel Options
machine specific constraints - Machine Constraints
macro with variable arguments - Variadic Macros
macros containing asm - Extended Asm
macros, inline alternative - Inline
macros, local labels - Local Labels
macros, local variables in - Typeof
macros, statements in expressions - Statement Exprs
macros, types of arguments - Typeof
make - Preprocessor Options
malloc attribute - Function Attributes
matching constraint - Simple Constraints
maximum operator - Min and Max
MCore options - MCore Options
member fns, automatically inline - Inline
memory references in constraints - Simple Constraints
message formatting - Language Independent Options
messages, warning - Warning Options
messages, warning and error - Warnings and Errors
middle-operands, omitted - Conditionals
minimum operator - Min and Max
MIPS options - MIPS Options
misunderstandings in C++ - C++ Misunderstandings
mixed declarations and code - Mixed Declarations
mktemp, and constant strings - Incompatibilities
MMIX Options - MMIX Options
MN10200 options - MN10200 Options
MN10300 options - MN10300 Options
mode attribute - Variable Attributes
modifiers in constraints - Modifiers
multiple alternative constraints - Multi-Alternative
multiprecision arithmetic - Long Long
n in constraint - Simple Constraints
names used in assembler code - Asm Labels
naming convention, implementation headers - C++ Interface
nested functions - Nested Functions
newlines (escaped) - Escaped Newlines
no_instrument_function function attribute - Function Attributes
nocommon attribute - Variable Attributes
noinline function attribute - Function Attributes
non-constant initializers - Initializers
non-static inline function - Inline
nonnull function attribute - Function Attributes
noreturn function attribute - Function Attributes
nothrow function attribute - Function Attributes
NS32K options - NS32K Options
o in constraint - Simple Constraints
Objective-C - G++ and GCC
Objective-C options, command line - Objective-C Dialect Options
OCS (88k) - M88K Options
offsettable address - Simple Constraints
old-style function definitions - Function Prototypes
omitted middle-operands - Conditionals
open coding - Inline
operand constraints, asm - Constraints
optimize options - Optimize Options
options to control diagnostics formatting - Language Independent Options
options to control warnings - Warning Options
options, C++ - C++ Dialect Options
options, code generation - Code Gen Options
options, debugging - Debugging Options
options, dialect - C Dialect Options
options, directory search - Directory Options
options, GCC command - Invoking GCC
options, grouping - Invoking GCC
options, linking - Link Options
options, Objective-C - Objective-C Dialect Options
options, optimization - Optimize Options
options, order - Invoking GCC
options, preprocessor - Preprocessor Options
order of evaluation, side effects - Non-bugs
order of options - Invoking GCC
other register constraints - Simple Constraints
output file option - Overall Options
overloaded virtual fn, warning - C++ Dialect Options
p in constraint - Simple Constraints
packed attribute - Variable Attributes
parameter forward declaration - Variable Length
parameters, aliased - Code Gen Options
PDP-11 Options - PDP-11 Options
PIC - Code Gen Options
pmf - Bound member functions
pointer arguments - Function Attributes
pointer to member function - Bound member functions
portions of temporary objects, pointers to - Temporaries
pragma, extern_prefix - Tru64 Pragmas
pragma, long_calls - ARM Pragmas
pragma, long_calls_off - ARM Pragmas
pragma, longcall - RS/6000 and PowerPC Pragmas
pragma, mark - Darwin Pragmas
pragma, no_long_calls - ARM Pragmas
pragma, options align - Darwin Pragmas
pragma, reason for not using - Function Attributes
pragma, redefine_extname - Solaris Pragmas
pragma, segment - Darwin Pragmas
pragma, unused - Darwin Pragmas
pragmas - Pragmas
pragmas in C++, effect on inlining - C++ Interface
pragmas, interface and implementation - C++ Interface
pragmas, warning of unknown - Warning Options
preprocessing numbers - Incompatibilities
preprocessing tokens - Incompatibilities
preprocessor options - Preprocessor Options
prof - Debugging Options
promotion of formal parameters - Function Prototypes
pure function attribute - Function Attributes
push address instruction - Simple Constraints
qsort, and global register variables - Global Reg Vars
question mark - Multi-Alternative
r in constraint - Simple Constraints
r0-relative references (88k) - M88K Options
ranges in case statements - Case Ranges
read-only strings - Incompatibilities
register positions in frame (88k) - M88K Options
register positions in frame (88k) - M88K Options
register variable after longjmp - Global Reg Vars
registers - Extended Asm
registers for local variables - Local Reg Vars
registers in constraints - Simple Constraints
registers, global allocation - Explicit Reg Vars
registers, global variables in - Global Reg Vars
regparm attribute - Function Attributes
reordering, warning - C++ Dialect Options
reporting bugs - Bugs
rest argument (in macro) - Variadic Macros
restricted pointers - Restricted Pointers
restricted references - Restricted Pointers
restricted this pointer - Restricted Pointers
RS/6000 and PowerPC Options - RS/6000 and PowerPC Options
RT options - RT Options
RTTI - Vague Linkage
run-time options - Code Gen Options
s in constraint - Simple Constraints
S/390 and zSeries Options - S/390 and zSeries Options
scanf, and constant strings - Incompatibilities
scope of a variable length array - Variable Length
scope of declaration - Disappointments
scope of external declarations - Incompatibilities
search path - Directory Options
section function attribute - Function Attributes
section variable attribute - Variable Attributes
sequential consistency on 88k - M88K Options
setjmp incompatibilities - Incompatibilities
shared strings - Incompatibilities
shared variable attribute - Variable Attributes
side effect in ?: - Conditionals
side effects, macro argument - Statement Exprs
side effects, order of evaluation - Non-bugs
signal handler functions on the AVR processors - Function Attributes
signed and unsigned values, comparison warning - Warning Options
simple constraints - Simple Constraints
smaller data references - M32R/D Options
smaller data references (88k) - M88K Options
smaller data references (MIPS) - MIPS Options
smaller data references (PowerPC) - RS/6000 and PowerPC Options
SPARC options - SPARC Options
Spec Files - Spec Files
specified registers - Explicit Reg Vars
specifying compiler version and target machine - Target Options
specifying hardware config - Submodel Options
specifying machine version - Target Options
specifying registers for local variables - Local Reg Vars
sscanf, and constant strings - Incompatibilities
statements inside expressions - Statement Exprs
static data in C++, declaring and defining - Static Definitions
stdarg.h and RT PC - RT Options
string constants - Incompatibilities
struct - Unnamed Fields
structure passing (88k) - M88K Options
structures - Incompatibilities
structures, constructor expression - Compound Literals
submodel options - Submodel Options
subscripting - Subscripting
subscripting and function values - Subscripting
suffixes for C++ source - Invoking G++
suppressing warnings - Warning Options
surprises in C++ - C++ Misunderstandings
SVr4 - M88K Options
syntax checking - Warning Options
synthesized methods, warning - C++ Dialect Options
system headers, warnings from - Warning Options
target machine, specifying - Target Options
target options - Target Options
TC1 - Standards
TC2 - Standards
Technical Corrigenda - Standards
Technical Corrigendum 1 - Standards
Technical Corrigendum 2 - Standards
template instantiation - Template Instantiation
temporaries, lifetime of - Temporaries
Thread-Local Storage - Thread-Local
thunks - Nested Functions
tiny data section on the H8/300H - Function Attributes
TLS - Thread-Local
tls_model attribute - Variable Attributes
TMS320C3x/C4x Options - TMS320C3x/C4x Options
traditional C language - C Dialect Options
treelang - G++ and GCC
treelang - Standards
type alignment - Alignment
type attributes - Type Attributes
type_info - Vague Linkage
typedef names as function parameters - Incompatibilities
ULL integer suffix - Long Long
Ultrix calling convention - Interoperation
undefined behavior - Bug Criteria
undefined function value - Bug Criteria
underscores in variables in macros - Typeof
underscores, avoiding (88k) - M88K Options
union - Unnamed Fields
union, casting to a - Cast to Union
unions - Incompatibilities
unknown pragmas, warning - Warning Options
unresolved references and -nodefaultlibs - Link Options
unresolved references and -nostdlib - Link Options
unused attribute. - Function Attributes
used attribute. - Function Attributes
V in constraint - Simple Constraints
V850 Options - V850 Options
vague linkage - Vague Linkage
value after longjmp - Global Reg Vars
variable addressability on the M32R/D - Variable Attributes
variable alignment - Alignment
variable attributes - Variable Attributes
variable number of arguments - Variadic Macros
variable-length array scope - Variable Length
variable-length arrays - Variable Length
variables in specified registers - Explicit Reg Vars
variables, local, in macros - Typeof
variadic macros - Variadic Macros
VAX calling convention - Interoperation
VAX options - VAX Options
visibility attribute - Function Attributes
VLAs - Variable Length
void pointers, arithmetic - Pointer Arith
void, size of pointer to - Pointer Arith
volatile access - Volatiles
volatile applied to function - Function Attributes
volatile read - Volatiles
volatile write - Volatiles
vtable - Vague Linkage
warning for comparison of signed and unsigned values - Warning Options
warning for overloaded virtual fn - C++ Dialect Options
warning for reordering of member initializers - C++ Dialect Options
warning for synthesized methods - C++ Dialect Options
warning for unknown pragmas - Warning Options
warning messages - Warning Options
warnings from system headers - Warning Options
warnings vs errors - Warnings and Errors
weak attribute - Function Attributes
whitespace - Incompatibilities
X in constraint - Simple Constraints
X3.159-1989 - Standards
x86-64 Options - i386 and x86-64 Options
Xstormy16 Options - Xstormy16 Options
Xtensa Options - Xtensa Options
zero division on 88k - M88K Options
zero-length arrays - Zero Length
zero-size structures - Empty Structures