| Nesting levels of compound statements, iteration
control structures, and selection control structures. | 256 | memory |
| Nesting levels of conditional inclusion. | 256 | memory |
| Pointer, array, and function declarators (in
any combination) modifying an arithmetic, structure, union, or incomplete
type in a declaration. | 256 | memory |
| Nesting levels of parenthesized expressions
within a full expression. | 256 | memory |
| Number of initial characters in an internal
identifier or macro name. | 1 024 | memory |
| Number of initial characters in an external
identifier. | 1 024 | memory |
| External identifiers in one translation unit. | 65 536 | memory |
| Identifiers with block scope declared in one
block. | 1 024 | memory |
| Macro identifiers simultaneously defined in
one translation unit. | 65 536 | memory |
| Parameters in one function declaration. | 256 | memory |
| Arguments in one function call. | 256 | memory |
| Parameters in one macro definition. | 256 | memory |
| Arguments in one macro invocation. | 256 | memory |
| Characters in one logical source line. | 65 536 | memory |
| Characters in a character string literal or
wide string literal after concatenation. | 65 536 | memory |
| Size of a C or C++ object (including arrays). | 262 144 | 4 294 967 296 |
| Nesting levels of #include file. | 256 | memory |
| Case labels for a switch statement,
excluding those for any nested switch statements. | 16 384 | memory |
| Data members in a single class, structure,
or union. | 16 384 | memory |
| Enumeration constants in a single enumeration. | 4 096 | memory |
| Levels of nested class, structure, or union
definitions in a single struct declaration-list. | 256 | memory |
Functions registered by atexit(). | 32 | 33 |
| Direct and indirect base classes. | 16 384 | memory |
| Direct base classes for a single class. | 1 024 | memory |
| Members declared in a single class. | 4 096 | memory |
| Final overriding virtual functions in a class,
accessible or not. | 16 384 | memory |
| Direct and indirect virtual bases of a class. | 1 024 | memory |
| Static members of a class. | 1 024 | memory |
| Friend declarations in a class. | 4 096 | memory |
| Access control declarations in a class. | 4 096 | memory |
| Member initializers in a constructor definition. | 6 144 | memory |
| Scope qualifications of one identifier. | 256 | memory |
| Nested external specifications. | 1 024 | memory |
| Template arguments in a template declaration. | 1 024 | memory |
| Recursively nested template instantiations. | 17 | memory |
| Handlers per try block. | 256 | memory |
| Throw specifications on a single function declaration. | 256 | memory |
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