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Macros | Functions

relptr.h File Reference

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Macros

#define relptr(type) union { type *relptr_type; Size relptr_off; }

#define relptr_declare(type, relptrtype) typedef relptr(type) relptrtype

#define relptr_access(base, rp)

#define relptr_is_null(rp) ((rp).relptr_off == 0)

#define relptr_offset(rp) ((rp).relptr_off - 1)

#define relptr_store(base, rp, val)

#define relptr_copy(rp1, rp2) ((rp1).relptr_off = (rp2).relptr_off)

Functions

static Size relptr_store_eval (char *base, char *val)

Macro Definition Documentation

◆ relptr

#define relptr ( type ) union { type *relptr_type; Size relptr_off; }

Definition at line 29 of file relptr.h.

◆ relptr_access

#define relptr_access ( base,

rp

)

Value:

(AssertVariableIsOfTypeMacro(base, char *), \

(void *) ((rp).relptr_off == 0 ? NULL : (base) + (rp).relptr_off - 1))

AssertVariableIsOfTypeMacro

#define AssertVariableIsOfTypeMacro(varname, typename)

Definition: c.h:983

Definition at line 51 of file relptr.h.

◆ relptr_copy

#define relptr_copy ( rp1,

rp2

) ((rp1).relptr_off = (rp2).relptr_off)

Definition at line 90 of file relptr.h.

◆ relptr_declare

#define relptr_declare ( type,

relptrtype

) typedef relptr(type) relptrtype

Definition at line 38 of file relptr.h.

◆ relptr_is_null

#define relptr_is_null ( rp ) ((rp).relptr_off == 0)

Definition at line 56 of file relptr.h.

◆ relptr_offset

#define relptr_offset ( rp ) ((rp).relptr_off - 1)

Definition at line 59 of file relptr.h.

◆ relptr_store

#define relptr_store ( base,

rp,

val

)

Value:

(AssertVariableIsOfTypeMacro(base, char *), \

(rp).relptr_off = relptr_store_eval((base), (char *) (val)))

val

long val

Definition: informix.c:689

relptr_store_eval

static Size relptr_store_eval(char *base, char *val)

Definition: relptr.h:64

Definition at line 85 of file relptr.h.

Function Documentation

◆ relptr_store_eval()

static Size relptr_store_eval ( char * base,

char * val

)

inlinestatic

Definition at line 64 of file relptr.h.

65{

66 if (val == NULL)

67 return 0;

68 else

69 {

70 Assert(val >= base);

71 return val - base + 1;

72 }

73}

Assert

Assert(PointerIsAligned(start, uint64))

References Assert(), and val.