ref: 628b7eaeb3daa2e2fa05171e399149bb3b804ad0
dir: /inc/c89/cstd.h/
#define STDC_VERSION "199409L" /* Translation limits */ /* * 15 nesting levels of compound statements, iteration control * structures, and selection control structures */ #define NR_BLOCK 15 /* * 8 nesting levels of conditional inclusion */ #define NR_COND 8 /* * 12 pointer, array, and function declarators (in any combinations) * modifying an arithmetic, a structure, a union, or an incomplete type * in a declaration */ #define NR_DECLARATORS 12 /* * 31 declarators nested by parentheses within a full declarator */ #define NR_SUBTYPE 31 /* * 32 expressions nested by parentheses within a full expression */ #define NR_SUBEXPR 32 /* * 31 significant initial characters in an internal identifier or a * macro name */ #define INTIDENTSIZ 31 /* * 6 significant initial characters in an external identifier */ #define EXTIDENTSIZ 6 /* * 511 external identifiers in one translation unit */ #define NR_EXT_IDENT 511 /* * 127 identifiers with block scope declared in one block */ #define NR_INT_IDENT 127 /* * 1024 macro identifiers simultaneously defined in one translation * unit */ #define NR_MACROIDENT 1024 /* * 31 parameters in one function definition */ #define NR_FUNPARAM 31 /* * 31 arguments in one function call */ #define NR_FUNARG 31 /* * 31 parameters in one macro definition */ #define NR_MACROPARAM 31 /* * 31 arguments in one macro invocation */ #define NR_MACROARG 31 /* * 509 characters in a logical source line */ #define LINESIZ 509 /* * 509 characters in a character string literal or wide string literal * (after concatenation) */ #define STRINGSIZ 509 /* * 32767 bytes in an object (in a hosted environment only) */ #define OBJECTSIZ 32767 /* * 8 nesting levels for #include'd files */ #define NR_INCLUDE 8 /* * 257 case labels for a switch statement (excluding those for any * nested switch statements) */ #define NR_SWITCH 257 /* * 127 members in a single structure or union */ #define NR_FIELDS 127 /* * 127 enumeration constants in a single enumeration */ #define NR_ENUM_CTES 127 /* * 15 levels of nested structure or union definitions in a single * struct-declaration-list */ #define NR_STRUCT_LEVEL 15 /* * number of defined structs/unions in one translation unit */ #define NR_MAXSTRUCTS 127