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Add const qualifiers for access functions 

The access functions do not mutate the toml_table.
Add const qualifiers to the parameters which are not mutated.
This commit is contained in:
Stanley Pinchak 2019-10-29 14:03:44 -05:00
parent c59fa7a058
commit 8278e68df9
2 changed files with 32 additions and 30 deletions
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30
toml.c
View File

@ -1728,7 +1728,7 @@ static tokentype_t next_token(context_t* ctx, int dotisspecial)
}
const char* toml_key_in(toml_table_t* tab, int keyidx)
const char* toml_key_in(const toml_table_t* tab, int keyidx)
{
if (keyidx < tab->nkval) return tab->kval[keyidx]->key;
@ -1742,7 +1742,7 @@ const char* toml_key_in(toml_table_t* tab, int keyidx)
}
const char* toml_raw_in(toml_table_t* tab, const char* key)
const char* toml_raw_in(const toml_table_t* tab, const char* key)
{
int i;
for (i = 0; i < tab->nkval; i++) {
@ -1752,7 +1752,7 @@ const char* toml_raw_in(toml_table_t* tab, const char* key)
return 0;
}
toml_array_t* toml_array_in(toml_table_t* tab, const char* key)
toml_array_t* toml_array_in(const toml_table_t* tab, const char* key)
{
int i;
for (i = 0; i < tab->narr; i++) {
@ -1763,7 +1763,7 @@ toml_array_t* toml_array_in(toml_table_t* tab, const char* key)
}
toml_table_t* toml_table_in(toml_table_t* tab, const char* key)
toml_table_t* toml_table_in(const toml_table_t* tab, const char* key)
{
int i;
for (i = 0; i < tab->ntab; i++) {
@ -1773,7 +1773,7 @@ toml_table_t* toml_table_in(toml_table_t* tab, const char* key)
return 0;
}
const char* toml_raw_at(toml_array_t* arr, int idx)
const char* toml_raw_at(const toml_array_t* arr, int idx)
{
if (arr->kind != 'v')
return 0;
@ -1782,12 +1782,12 @@ const char* toml_raw_at(toml_array_t* arr, int idx)
return arr->u.val[idx];
}
char toml_array_kind(toml_array_t* arr)
char toml_array_kind(const toml_array_t* arr)
{
return arr->kind;
}
char toml_array_type(toml_array_t* arr)
char toml_array_type(const toml_array_t* arr)
{
if (arr->kind != 'v')
return 0;
@ -1799,37 +1799,37 @@ char toml_array_type(toml_array_t* arr)
}
int toml_array_nelem(toml_array_t* arr)
int toml_array_nelem(const toml_array_t* arr)
{
return arr->nelem;
}
const char* toml_array_key(toml_array_t* arr)
const char* toml_array_key(const toml_array_t* arr)
{
return arr ? arr->key : (const char*) NULL;
}
int toml_table_nkval(toml_table_t* tab)
int toml_table_nkval(const toml_table_t* tab)
{
return tab->nkval;
}
int toml_table_narr(toml_table_t* tab)
int toml_table_narr(const toml_table_t* tab)
{
return tab->narr;
}
int toml_table_ntab(toml_table_t* tab)
int toml_table_ntab(const toml_table_t* tab)
{
return tab->ntab;
}
const char* toml_table_key(toml_table_t* tab)
const char* toml_table_key(const toml_table_t* tab)
{
return tab ? tab->key : (const char*) NULL;
}
toml_array_t* toml_array_at(toml_array_t* arr, int idx)
toml_array_t* toml_array_at(const toml_array_t* arr, int idx)
{
if (arr->kind != 'a')
return 0;
@ -1838,7 +1838,7 @@ toml_array_t* toml_array_at(toml_array_t* arr, int idx)
return arr->u.arr[idx];
}
toml_table_t* toml_table_at(toml_array_t* arr, int idx)
toml_table_t* toml_table_at(const toml_array_t* arr, int idx)
{
if (arr->kind != 't')
return 0;

32
toml.h
View File

@ -58,45 +58,47 @@ TOML_EXTERN toml_table_t* toml_parse(char* conf, /* NUL terminated, please. */
TOML_EXTERN void toml_free(toml_table_t* tab);
/* Retrieve the key in table at keyidx. Return 0 if out of range. */
TOML_EXTERN const char* toml_key_in(toml_table_t* tab, int keyidx);
TOML_EXTERN const char* toml_key_in(const toml_table_t* tab, int keyidx);
/* Lookup table by key. Return the element or 0 if not found. */
TOML_EXTERN const char* toml_raw_in(toml_table_t* tab, const char* key);
TOML_EXTERN toml_array_t* toml_array_in(toml_table_t* tab, const char* key);
TOML_EXTERN toml_table_t* toml_table_in(toml_table_t* tab, const char* key);
TOML_EXTERN const char* toml_raw_in(const toml_table_t* tab, const char* key);
TOML_EXTERN toml_array_t* toml_array_in(const toml_table_t* tab,
const char* key);
TOML_EXTERN toml_table_t* toml_table_in(const toml_table_t* tab,
const char* key);
/* Return the array kind: 't'able, 'a'rray, 'v'alue */
TOML_EXTERN char toml_array_kind(toml_array_t* arr);
TOML_EXTERN char toml_array_kind(const toml_array_t* arr);
/* For array kind 'v'alue, return the type of values
i:int, d:double, b:bool, s:string, t:time, D:date, T:timestamp
0 if unknown
*/
TOML_EXTERN char toml_array_type(toml_array_t* arr);
TOML_EXTERN char toml_array_type(const toml_array_t* arr);
/* Return the number of elements in the array */
TOML_EXTERN int toml_array_nelem(toml_array_t* arr);
TOML_EXTERN int toml_array_nelem(const toml_array_t* arr);
/* Return the key of an array */
TOML_EXTERN const char* toml_array_key(toml_array_t* arr);
TOML_EXTERN const char* toml_array_key(const toml_array_t* arr);
/* Return the number of key-values in a table */
TOML_EXTERN int toml_table_nkval(toml_table_t* tab);
TOML_EXTERN int toml_table_nkval(const toml_table_t* tab);
/* Return the number of arrays in a table */
TOML_EXTERN int toml_table_narr(toml_table_t* tab);
TOML_EXTERN int toml_table_narr(const toml_table_t* tab);
/* Return the number of sub-tables in a table */
TOML_EXTERN int toml_table_ntab(toml_table_t* tab);
TOML_EXTERN int toml_table_ntab(const toml_table_t* tab);
/* Return the key of a table*/
TOML_EXTERN const char* toml_table_key(toml_table_t* tab);
TOML_EXTERN const char* toml_table_key(const toml_table_t* tab);
/* Deref array by index. Return the element at idx or 0 if out of range. */
TOML_EXTERN const char* toml_raw_at(toml_array_t* arr, int idx);
TOML_EXTERN toml_array_t* toml_array_at(toml_array_t* arr, int idx);
TOML_EXTERN toml_table_t* toml_table_at(toml_array_t* arr, int idx);
TOML_EXTERN const char* toml_raw_at(const toml_array_t* arr, int idx);
TOML_EXTERN toml_array_t* toml_array_at(const toml_array_t* arr, int idx);
TOML_EXTERN toml_table_t* toml_table_at(const toml_array_t* arr, int idx);
/* Raw to String. Caller must call free(ret) after use.