| C_INT int |
| C_SHORT short int |
| C_LONG long int |
| C_LONG_LONG long long int |
| C_SIGNED_CHAR signed char/unsigned char |
| C_SIZE_T size_t |
| C_INT8_T int8_t |
| C_INT16_T int16_t |
| C_INT32_T int32_t |
| C_INT64_T int64_t |
| C_INT_LEAST8_T int_least8_t |
| C_INT_LEAST16_T int_least16_t |
| C_INT_LEAST32_T int_least32_t |
| C_INT_LEAST64_T int_least64_t |
| C_INT_FAST8_T int_fast8_t |
| C_INT_FAST16_T int_fast16_t |
| C_INT_FAST32_T int_fast32_t |
| C_INT_FAST64_T int_fast64_t |
| C_INTMAX_T intmax_t |
| C_INTPTR_T intptr_t |
| C_FLOAT float |
| C_DOUBLE double |
| C_LONG_DOUBLE long double |
| C_FLOAT_COMPLEX float _Complex |
| C_DOUBLE_COMPLEX double _Complex |
| C_LONG_DOUBLE_COMPLEX long double _Complex |
| C_BOOL _Bool |
| C_CHAR char |
| C_NULL_CHAR '\0' |
| C_ALERT '\a' |
| C_BACKSPACE '\b' |
| C_FORM_FEED '\f' |
| C_NEW_LINE '\n' |
| C_CARRIAGE_RETURN '\r' |
| C_HORIZONTAL_TAB '\t' |
| C_VERTICAL_TAB '\v' |
| C_PTR C pointer |
| C_FUNPTR C function pointer |
| C_NULL_PTR Null C pointer |
| C_NULL_FUNPTR Null C function pointer |
| C_ASSOCIATED (C_PTR_1 [, C_PTR_2]) C pointer association status. |
| C_F_POINTER (CPTR, FPTR [, SHAPE]) Sets a Fortran pointer. |
| C_F_PROCPOINTER (CPTR, FPTR) Sets a Fortran procedure pointer. |
| C_FUNLOC (X) Returns a C function pointer for the given procedure. |
| C_LOC (X) Returns a C pointer for the given variable. |
