gcc: C Implementation

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1 4 C Implementation-Defined Behavior
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1 A conforming implementation of ISO C is required to document its choice
1 of behavior in each of the areas that are designated "implementation
1 defined".  The following lists all such areas, along with the section
1 numbers from the ISO/IEC 9899:1990, ISO/IEC 9899:1999 and ISO/IEC
1 9899:2011 standards.  Some areas are only implementation-defined in one
1 version of the standard.
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1  Some choices depend on the externally determined ABI for the platform
1 (including standard character encodings) which GCC follows; these are
11 listed as "determined by ABI" below.  ⇒Binary Compatibility
 Compatibility, and <http://gcc.gnu.org/readings.html>.  Some choices are
11 documented in the preprocessor manual.  ⇒Implementation-defined
 behavior (cpp)Implementation-defined behavior.  Some choices are made
1 by the library and operating system (or other environment when compiling
1 for a freestanding environment); refer to their documentation for
1 details.
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Menu

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· Translation implementation
· Environment implementation
· Identifiers implementation
· Characters implementation
· Integers implementation
· Floating point implementation
· Arrays and pointers implementation
· Hints implementation
· Structures unions enumerations and bit-fields implementation
· Qualifiers implementation
· Declarators implementation
· Statements implementation
· Preprocessing directives implementation
· Library functions implementation
· Architecture implementation
· Locale-specific behavior implementation
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