Use pointer to const for strings that aren't/shouldn't be modified

2 files changed, 19 insertions, 19 deletions

diff --git a/include/yaml.h b/include/yaml.h
index 7163684..1182336 100644
--- a/include/yaml.h
+++ b/include/yaml.h
@@ -552,7 +552,7 @@ yaml_document_end_event_initialize(yaml_event_t *event, int implicit);
  */
 
 YAML_DECLARE(int)
-yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
+yaml_alias_event_initialize(yaml_event_t *event, const yaml_char_t *anchor);
 
 /**
  * Create a SCALAR event.
@@ -578,8 +578,8 @@ yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor);
 
 YAML_DECLARE(int)
 yaml_scalar_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag,
-        yaml_char_t *value, int length,
+        const yaml_char_t *anchor, const yaml_char_t *tag,
+        const yaml_char_t *value, int length,
         int plain_implicit, int quoted_implicit,
         yaml_scalar_style_t style);
 
@@ -601,7 +601,7 @@ yaml_scalar_event_initialize(yaml_event_t *event,
 
 YAML_DECLARE(int)
 yaml_sequence_start_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,
+        const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
         yaml_sequence_style_t style);
 
 /**
@@ -633,7 +633,7 @@ yaml_sequence_end_event_initialize(yaml_event_t *event);
 
 YAML_DECLARE(int)
 yaml_mapping_start_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,
+        const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
         yaml_mapping_style_t style);
 
 /**
@@ -896,7 +896,7 @@ yaml_document_get_root_node(yaml_document_t *document);
 
 YAML_DECLARE(int)
 yaml_document_add_scalar(yaml_document_t *document,
-        yaml_char_t *tag, yaml_char_t *value, int length,
+        const yaml_char_t *tag, const yaml_char_t *value, int length,
         yaml_scalar_style_t style);
 
 /**
@@ -913,7 +913,7 @@ yaml_document_add_scalar(yaml_document_t *document,
 
 YAML_DECLARE(int)
 yaml_document_add_sequence(yaml_document_t *document,
-        yaml_char_t *tag, yaml_sequence_style_t style);
+        const yaml_char_t *tag, yaml_sequence_style_t style);
 
 /**
  * Create a MAPPING node and attach it to the document.
@@ -929,7 +929,7 @@ yaml_document_add_sequence(yaml_document_t *document,
 
 YAML_DECLARE(int)
 yaml_document_add_mapping(yaml_document_t *document,
-        yaml_char_t *tag, yaml_mapping_style_t style);
+        const yaml_char_t *tag, yaml_mapping_style_t style);
 
 /**
  * Add an item to a SEQUENCE node.
diff --git a/src/api.c b/src/api.c
index e793b08..16f88bd 100644
--- a/src/api.c
+++ b/src/api.c
@@ -623,10 +623,10 @@ yaml_token_delete(yaml_token_t *token)
  */
 
 static int
-yaml_check_utf8(yaml_char_t *start, size_t length)
+yaml_check_utf8(const yaml_char_t *start, size_t length)
 {
-    yaml_char_t *end = start+length;
-    yaml_char_t *pointer = start;
+    const yaml_char_t *end = start+length;
+    const yaml_char_t *pointer = start;
 
     while (pointer < end) {
         unsigned char octet;
@@ -794,7 +794,7 @@ yaml_document_end_event_initialize(yaml_event_t *event, int implicit)
  */
 
 YAML_DECLARE(int)
-yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor)
+yaml_alias_event_initialize(yaml_event_t *event, const yaml_char_t *anchor)
 {
     yaml_mark_t mark = { 0, 0, 0 };
     yaml_char_t *anchor_copy = NULL;
@@ -819,8 +819,8 @@ yaml_alias_event_initialize(yaml_event_t *event, yaml_char_t *anchor)
 
 YAML_DECLARE(int)
 yaml_scalar_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag,
-        yaml_char_t *value, int length,
+        const yaml_char_t *anchor, const yaml_char_t *tag,
+        const yaml_char_t *value, int length,
         int plain_implicit, int quoted_implicit,
         yaml_scalar_style_t style)
 {
@@ -873,7 +873,7 @@ error:
 
 YAML_DECLARE(int)
 yaml_sequence_start_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,
+        const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
         yaml_sequence_style_t style)
 {
     yaml_mark_t mark = { 0, 0, 0 };
@@ -928,7 +928,7 @@ yaml_sequence_end_event_initialize(yaml_event_t *event)
 
 YAML_DECLARE(int)
 yaml_mapping_start_event_initialize(yaml_event_t *event,
-        yaml_char_t *anchor, yaml_char_t *tag, int implicit,
+        const yaml_char_t *anchor, const yaml_char_t *tag, int implicit,
         yaml_mapping_style_t style)
 {
     yaml_mark_t mark = { 0, 0, 0 };
@@ -1193,7 +1193,7 @@ yaml_document_get_root_node(yaml_document_t *document)
 
 YAML_DECLARE(int)
 yaml_document_add_scalar(yaml_document_t *document,
-        yaml_char_t *tag, yaml_char_t *value, int length,
+        const yaml_char_t *tag, const yaml_char_t *value, int length,
         yaml_scalar_style_t style)
 {
     struct {
@@ -1243,7 +1243,7 @@ error:
 
 YAML_DECLARE(int)
 yaml_document_add_sequence(yaml_document_t *document,
-        yaml_char_t *tag, yaml_sequence_style_t style)
+        const yaml_char_t *tag, yaml_sequence_style_t style)
 {
     struct {
         yaml_error_type_t error;
@@ -1288,7 +1288,7 @@ error:
 
 YAML_DECLARE(int)
 yaml_document_add_mapping(yaml_document_t *document,
-        yaml_char_t *tag, yaml_mapping_style_t style)
+        const yaml_char_t *tag, yaml_mapping_style_t style)
 {
     struct {
         yaml_error_type_t error;