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const cleanups in instructions.c

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* libguile/instructions.c (fetch_rtl_instruction_table)
  (fetch_instruction_table): Make the returned table const.  Adapt
  callers.
  (scm_rtl_instruction_list): Fix comment about format of return value.
This commit is contained in:
Andy Wingo 2013-06-08 14:58:10 +02:00
parent 510ca12687
commit 90a7976eb8
1 changed files with 11 additions and 11 deletions
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22
libguile/instructions.c
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@ -127,7 +127,7 @@ struct scm_rtl_instruction {
static scm_i_pthread_mutex_t itable_lock = SCM_I_PTHREAD_MUTEX_INITIALIZER;
static struct scm_instruction*
static const struct scm_instruction*
fetch_instruction_table ()
{
static struct scm_instruction *table = NULL;
@ -159,7 +159,7 @@ fetch_instruction_table ()
return table;
}
static struct scm_rtl_instruction*
static const struct scm_rtl_instruction*
fetch_rtl_instruction_table ()
{
static struct scm_rtl_instruction *table = NULL;
@ -190,11 +190,11 @@ fetch_rtl_instruction_table ()
return table;
}
static struct scm_instruction *
static const struct scm_instruction *
scm_lookup_instruction_by_name (SCM name)
{
static SCM instructions_by_name = SCM_BOOL_F;
struct scm_instruction *table = fetch_instruction_table ();
const struct scm_instruction *table = fetch_instruction_table ();
SCM op;
if (SCM_UNLIKELY (scm_is_false (instructions_by_name)))
@ -227,7 +227,7 @@ SCM_DEFINE (scm_instruction_list, "instruction-list", 0, 0, 0,
{
SCM list = SCM_EOL;
int i;
struct scm_instruction *ip = fetch_instruction_table ();
const struct scm_instruction *ip = fetch_instruction_table ();
for (i = 0; i < SCM_VM_NUM_INSTRUCTIONS; i++)
if (ip[i].name)
list = scm_cons (ip[i].symname, list);
@ -242,7 +242,7 @@ SCM_DEFINE (scm_rtl_instruction_list, "rtl-instruction-list", 0, 0, 0,
{
SCM list = SCM_EOL;
int i;
struct scm_rtl_instruction *ip = fetch_rtl_instruction_table ();
const struct scm_rtl_instruction *ip = fetch_rtl_instruction_table ();
for (i = 0; i < SCM_VM_NUM_INSTRUCTIONS; i++)
if (ip[i].name)
{
@ -250,7 +250,7 @@ SCM_DEFINE (scm_rtl_instruction_list, "rtl-instruction-list", 0, 0, 0,
SCM tail = SCM_EOL;
int len;
/* Format: (name opcode len rest? out br in) */
/* Format: (name opcode word0 word1 ...) */
if (WORD_TYPE (3, meta))
len = 4;
@ -300,7 +300,7 @@ SCM_DEFINE (scm_instruction_length, "instruction-length", 1, 0, 0,
"")
#define FUNC_NAME s_scm_instruction_length
{
struct scm_instruction *ip;
const struct scm_instruction *ip;
SCM_VALIDATE_LOOKUP_INSTRUCTION (1, inst, ip);
return SCM_I_MAKINUM (ip->len);
}
@ -311,7 +311,7 @@ SCM_DEFINE (scm_instruction_pops, "instruction-pops", 1, 0, 0,
"")
#define FUNC_NAME s_scm_instruction_pops
{
struct scm_instruction *ip;
const struct scm_instruction *ip;
SCM_VALIDATE_LOOKUP_INSTRUCTION (1, inst, ip);
return SCM_I_MAKINUM (ip->npop);
}
@ -322,7 +322,7 @@ SCM_DEFINE (scm_instruction_pushes, "instruction-pushes", 1, 0, 0,
"")
#define FUNC_NAME s_scm_instruction_pushes
{
struct scm_instruction *ip;
const struct scm_instruction *ip;
SCM_VALIDATE_LOOKUP_INSTRUCTION (1, inst, ip);
return SCM_I_MAKINUM (ip->npush);
}
@ -333,7 +333,7 @@ SCM_DEFINE (scm_instruction_to_opcode, "instruction->opcode", 1, 0, 0,
"")
#define FUNC_NAME s_scm_instruction_to_opcode
{
struct scm_instruction *ip;
const struct scm_instruction *ip;
SCM_VALIDATE_LOOKUP_INSTRUCTION (1, inst, ip);
return SCM_I_MAKINUM (ip->opcode);
}