(1)

How a diagnostic is identified (3.10, 5.1.1.3).

(2)

Whether each non-empty sequence of white-space characters other than new-line is retained or replaced by one space character in translation phase 3 (5.1.1.2).

(3)

The mapping between physical source file multi-byte characters and the source character set in translation phase 1 (5.1.1.2).

(4)

The name and type of the function called at program startup in a freestanding environment (5.1.2.1).

(5)

The effect of program termination in a freestanding environment (5.1.2.1).

(6)

An alternative manner in which the main function may be defined (5.1.2.2.1).

(7)

The values given to the strings pointed to by the argv argument to main (5.1.2.2.1).

(8)

What constitutes an interactive device (5.1.2.3).

(9)

The set of signals, their semantics, and their default handling (7.14).

(10)

Signal values other than SIGFPE, SIGILL, and SIGSEGV that correspond to a computational exception (7.14.1.1).

(11)

Signals for which the equivalent of signal(sig, SIG_IGN); is executed at program startup (7.14.1.1).

(12)

The set of environment names and the method for altering the environment list used by the getenv function (7.20.4.5).

(13)

The manner of execution of the string by the system function (7.20.4.6).

(14)

Which additional multibyte characters may appear in identifiers and their correspondence to universal character names (6.4.2).

(15)

The number of significant initial characters in an identifier (5.2.4.1, 6.4.2).

(16)

The number of bits in a byte (3.6).

(17)

The values of the members of the execution character set (5.2.1).

(18)

The unique value of the member of the execution character set produced for each of the standard alphabetic escape sequences (5.2.2).

(19)

The value of a char object into which has been stored any character other than a member of the basic execution character set (6.2.5).

(20)

Which of signed char or unsigned char has the same range, representation, and behavior as "plain" char (6.2.5, 6.3.1.1).

(21)

The mapping of members of the source character set (in character constants and string literals) to members of the execution character set (6.4.4.4, 5.1.1.2).

(22)

The value of an integer character constant containing more than one character or containing a character or escape sequence that does not map to a single-byte execution character (6.4.4.4).

(23)

The value of a wide character constant containing more than one multibyte character, or containing a multibyte character or escape sequence not represented in the extended execution character set (6.4.4.4).

(24)

The current locale used to convert a wide character constant consisting of a single multi-byte character that maps to a member of the extended execution character set into a corresponding wide character code (6.4.4.4).

(25)

The current locale used to convert a wide string literal into corresponding wide character codes (6.4.5).

(26)

The value of a string literal containing a multi-byte character or escape sequence not represented in the execution character set (6.4.5).

(27)

Any extended integer types that exist in the implementation (6.2.5).

(28)

Whether signed integer types are represented using sign and magnitude, two's complement, or one's complement, and whether the extraordinary value is a trap representation or an ordinary value (6.2.6.2).

(29)

The rank of any extended integer type relative to another extended integer type with the same precision (6.3.1.1).

(30)

The result of, or the signal raised by, converting an integer to a signed integer type when the value cannot be represented in an object of that type (6.3.1.3).

(31)

The results of some bit-wise operations on signed integers (6.5).

(32)

The accuracy of the floating-point operations and of the library functions in <math.h> and <complex.h> that return floating-point results (5.2.4.2.2).

(33)

The rounding behaviors characterized by non-standard values of FLT_ROUNDS (5.2.4.2.2).

(34)

The evaluation methods characterized by non-standard negative values of FLT_EVAL_METHOD (5.2.4.2.2).

(35)

The direction of rounding when an integer is converted to a floating-point number that cannot exactly represent the original value (6.3.1.4).

(36)

The direction of rounding when a floating-point number is converted to a narrower floating-point number (6.3.1.5).

(37)

How the nearest representable value or the larger or smaller representable value immediately adjacent to the nearest representable value is chosen for certain floating constants (6.4.4.2).

(38)

Whether and how floating expressions are contracted when not disallowed by the FP_CONTRACT pragma (6.5).

(39)

The default state for the FENV_ACCESS pragma (7.6.1).

(40)

Additional floating-point exceptions, rounding modes, environments, and classifications, and their macro names (7.6, 7.12).

(41)

The default state for the FP_CONTRACT pragma (7.12.2).

(42)

Whether the "inexact" floating-point exception can be raised when the rounded result actually does equal the mathematical result in an IEC 60559 conformant implementation (F.9).

(43)

Whether the underflow (and inexact) floating-point exception can be raised when a result is tiny but not inexact in an IEC 60559 conformant implementation (F.9).

(44)

The result of converting a pointer to an integer or vice versa (6.3.2.3).

(45)

The size of the result of subtracting two pointers to elements of the same array (6.5.6).

(46)

The extent to which suggestions made by using the register storage-class specifier are effective (6.7.1).

(47)

The extent to which suggestions made by using the inline function specifier are effective (6.7.4).

(48)

Whether a "plain" int bit-field is treated as signed int bit-field or as an unsigned int bit-field (6.7.2, 6.7.2.1).

(49)

Allowable bit-field types other than _Bool, signed int, and unsigned int (6.7.2.1).

(50)

Whether a bit-field can straddle a storage-unit boundary (6.7.2.1).

(51)

The order of allocation of bit-fields within a unit (6.7.2.1).

(52)

The alignment of non-bit-field members of structures (6.7.2.1).

(53)

The integer type compatible with each enumerated type (6.7.2.2).

(54)

What constitutes an access to an object that has volatile-qualified type (6.7.3).

(55)

How sequences in both forms of header names are mapped to headers or external source file names (6.4.7).

(56)

Whether the value of a character constant in a constant expression that controls conditional inclusion matches the value of the same character constant in the execution character set (6.10.1).

(57)

Whether the value of a single-character character constant in a constant expression that controls conditional inclusion may have a negative value (6.10.1).

(58)

The places that are searched for an included < > delimited header, and how the places are specified other header is identified (6.10.2).

(59)

How the named source file is searched for in an included " " delimited header (6.10.2).

(60)

The method by which preprocessing tokens (possibly resulting from macro expansion) in a #include directive are combined into a header name (6.10.2).

(61)

The nesting limit for #include processing (6.10.2).

(62)

Whether the # operator inserts a \ character before the \ character that begins a universal character name in a character constant or string literal (6.10.3.2).

(63)

The behavior on each recognized non-STDC #pragma directive (6.10.6).

(64)

The definitions for __DATE__ and __TIME__ when respectively, the date and time of translation are not available (6.10.8).

(65)

Any library facilities available to a freestanding program, other than the minimal set required by clause 4 (5.1.2.1).

(66)

The format of the diagnostic printed by the assert macro (7.2.1.1).

(67)

The representation of the floating-point status flags stored by the fegetexceptflag function (7.6.2.2).

(68)

Whether the feraiseexcept function raises the "inexact" floating-point exception in addition to the "overflow" or "underflow" floating-point exception (7.6.2.3).

(69)

Strings other than "C" and "" that may be passed as the second argument to the setlocale function (7.11.1.1).

(70)

The types defined for float_t and double_t when the value of the FLT_EVAL_METHOD macro is less than zero or greater than two (7.12).

(71)

Domain errors for the mathematics functions, other that those required by this International Standard (7.12.1).

(72)

The values returned by the mathematics functions on domain errors (7.12.1).

(73)

The values returned by the mathematics functions on underflow range errors, whether errno is set to the value of the macro ERANGE when the integer expression math_errhandling & MATH_ERRNO is nonzero, and whether the "underflow" floating-point exception is raised when the integer expression math_errhandling & MATH_ERREXCEPT is nonzero. (7.12.1).

(74)

Whether a domain error occurs or zero is returned when an fmod function has a second argument of zero (7.12.10.1).

(75)

The base-2 logarithm of the modulus used by the remquo functions in reducing the quotient (7.12.10.3).

(76)

Whether the equivalent of signal(sig, SIG_DFL); is executed prior to the call of a signal handler, and, if not, the blocking of signals that is performed (7.14.1.1).

(77)

The null pointer constant to which the macro NULL expands (7.17).

(78)

Whether the last line of a text stream requires a terminating new-line character (7.19.2).

(79)

Whether space characters that are written out to a text stream immediately before a new-line character appear when read in (7.19.2).

(80)

The number of null characters that may be appended to data written to a binary stream (7.19.2).

(81)

Whether the file position indicator of an append-mode stream is initially positioned at the beginning or end of the file (7.19.3).

(82)

Whether a write on a text stream causes the associated file to be truncated beyond that point (7.19.3).

(83)

The characteristics of file buffering (7.19.3).

(84)

Whether a zero-length file actually exists (7.19.3).

(85)

The rules for composing valid file names (7.19.3).

(86)

Whether the same file can be simultaneously open multiple times (7.19.3).

(87)

The nature and choice of encodings used for multibyte characters in files (7.19.3).

(88)

The effect of the remove function on an open file (7.19.4.1).

(89)

The effect if a file with the new name exists prior to a call to the rename function (7.19.4.2).

(90)

Whether an open temporary file is removed upon abnormal program termination (7.19.4.3).

(91)

Which changes of mode are permitted (if any), and under what circumstances (7.19.5.4).

(92)

The style used to print an infinity or NaN, and the meaning of any n-char or n-wchar sequence printed for a NaN (7.19.6.1, 7.24.2.1).

(93)

The output for %p conversion in the fprintf or fwprintf function (7.19.6.1, 7.24.2.1).

(94)

The interpretation of a - character that is neither the first nor the last character, nor the second where a ^ character is the first, in the scanlist for %[ conversion in the fscanf() or fwscanf() function (7.19.6.2, 7.24.2.1).

(95)

The set of sequences matched by a %p conversion and the interpretation of the corresponding input item in the fscanf() or fwscanf() function (7.19.6.2, 7.24.2.2).

(96)

The value to which the macro errno is set by the fgetpos, fsetpos, or ftell functions on failure (7.19.9.1, 7.19.9.3, 7.19.9.4).

(97)

The meaning of any n-char or n-wchar sequence in a string representing a NaN that is converted by the strtod(), strtof(), strtold(), wcstod(), wcstof(), or wcstold() function (7.20.1.3, 7.24.4.1.1).

(98)

Whether or not the strtod, strtof, strtold, wcstod, wcstof, or wcstold function sets errno to ERANGE when underflow occurs (7.20.1.3, 7.24.4.1.1).

(99)

Whether the calloc, malloc, and realloc functions return a null pointer or a pointer to an allocated object when the size requested is zero (7.20.3).

(100)

Whether open streams with unwritten buffered data are flushed, open streams are closed, or temporary files are removed when the abort or _Exit function is called (7.20.4.1, 7.20.4.4).

(101)

The termination status returned to the host environment by the abort, exit, or _Exit function (7.20.4.1, 7.20.4.3, 7.20.4.4).

(102)

The value returned by the system function when its argument is not a null pointer (7.20.4.6).

(103)

The local time zone and Daylight Saving Time (7.23.1).

(104)

The range and precision of times representable in clock_t and time_t (7.23).

(105)

The era for the clock function (7.23.2.1).

(106)

The replacement string for the %Z specifier to the strftime, and wcsftime functions in the "C" locale (7.23.3.5, 7.24.5.1).

(107)

Whether or when the trigonometric, hyperbolic, base-e exponential, base-e logarithmic, error, and log gamma functions raise the "inexact" floating-point exception in an IEC 60559 conformant implementation (F.9).

(108)

Whether the functions in <math.h> honor the rounding direction mode in an IEC 60559 conformant implementation (F.9).

(109)

The values or expressions assigned to the macros specified in the headers <float.h>, <limits.h>, and <stdint.h> (5.2.4.2, 7.18.2, 7.18.3).

(110)

The number, order, and encoding of bytes in any object (when not explicitly specified in this International Standard) (6.2.6.1).

(111)

The value of the result of the sizeof operator (6.5.3.4).