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zero-init

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This commit is contained in:
Ryan Fleury
2021-09-16 22:44:52 -06:00
parent 49e7e19364
commit bd754c1816
3 changed files with 22 additions and 24 deletions
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source/md.c
+15 -14
View File
@@ -803,6 +803,7 @@ MD_S8FmtV(MD_Arena *arena, char *fmt, va_list args)
MD_u64 needed_bytes = md_stbsp_vsnprintf(0, 0, fmt, args)+1;
result.str = MD_PushArray(arena, MD_u8, needed_bytes);
result.size = needed_bytes - 1;
result.str[needed_bytes-1] = 0;
md_stbsp_vsnprintf((char*)result.str, needed_bytes, fmt, args2);
return result;
}
@@ -820,7 +821,7 @@ MD_S8Fmt(MD_Arena *arena, char *fmt, ...)
MD_FUNCTION void
MD_S8ListPush(MD_Arena *arena, MD_String8List *list, MD_String8 string)
{
MD_String8Node *node = MD_PushArray(arena, MD_String8Node, 1);
MD_String8Node *node = MD_PushArrayZero(arena, MD_String8Node, 1);
node->string = string;
MD_QueuePush(list->first, list->last, node);
@@ -922,7 +923,7 @@ MD_S8ListJoin(MD_Arena *arena, MD_String8List list, MD_StringJoin *join_ptr)
MD_String8 result = MD_ZERO_STRUCT;
result.size = (list.total_size + join.pre.size +
sep_count*join.mid.size + join.post.size);
result.str = MD_PushArray(arena, MD_u8, result.size);
result.str = MD_PushArrayZero(arena, MD_u8, result.size);
// fill
MD_u8 *ptr = result.str;
@@ -1005,7 +1006,7 @@ MD_S8Stylize(MD_Arena *arena, MD_String8 string, MD_IdentifierStyle word_style,
{
result.size += separator.size*(words.node_count-1);
}
result.str = MD_PushArray(arena, MD_u8, result.size);
result.str = MD_PushArrayZero(arena, MD_u8, result.size);
{
MD_u64 write_pos = 0;
@@ -1234,7 +1235,7 @@ MD_FUNCTION MD_String8
MD_S8FromS16(MD_Arena *arena, MD_String16 in)
{
MD_u64 cap = in.size*3;
MD_u8 *str = MD_PushArray(arena, MD_u8, cap + 1);
MD_u8 *str = MD_PushArrayZero(arena, MD_u8, cap + 1);
MD_u16 *ptr = in.str;
MD_u16 *opl = ptr + in.size;
MD_u64 size = 0;
@@ -1254,7 +1255,7 @@ MD_FUNCTION MD_String16
MD_S16FromS8(MD_Arena *arena, MD_String8 in)
{
MD_u64 cap = in.size*2;
MD_u16 *str = MD_PushArray(arena, MD_u16, cap + 1);
MD_u16 *str = MD_PushArrayZero(arena, MD_u16, cap + 1);
MD_u8 *ptr = in.str;
MD_u8 *opl = ptr + in.size;
MD_u64 size = 0;
@@ -1275,7 +1276,7 @@ MD_FUNCTION MD_String8
MD_S8FromS32(MD_Arena *arena, MD_String32 in)
{
MD_u64 cap = in.size*4;
MD_u8 *str = MD_PushArray(arena, MD_u8, cap + 1);
MD_u8 *str = MD_PushArrayZero(arena, MD_u8, cap + 1);
MD_u32 *ptr = in.str;
MD_u32 *opl = ptr + in.size;
MD_u64 size = 0;
@@ -1293,7 +1294,7 @@ MD_FUNCTION MD_String32
MD_S32FromS8(MD_Arena *arena, MD_String8 in)
{
MD_u64 cap = in.size;
MD_u32 *str = MD_PushArray(arena, MD_u32, cap + 1);
MD_u32 *str = MD_PushArrayZero(arena, MD_u32, cap + 1);
MD_u8 *ptr = in.str;
MD_u8 *opl = ptr + in.size;
MD_u64 size = 0;
@@ -1507,7 +1508,7 @@ MD_CStyleHexStringFromU64(MD_Arena *arena, MD_u64 x, MD_b32 caps)
MD_String8 result = MD_ZERO_STRUCT;
result.size = (MD_u64)(ptr - buffer);
result.str = MD_PushArray(arena, MD_u8, result.size);
result.str = MD_PushArrayZero(arena, MD_u8, result.size);
MD_MemoryCopy(result.str, buffer, result.size);
return(result);
}
@@ -1594,9 +1595,8 @@ MD_FUNCTION MD_u64
MD_HashPtr(void *p)
{
MD_u64 h = (MD_u64)p;
// TODO(rjf): Do we want our own equivalent of UINT64_C?
h = (h ^ (h >> 30)) * UINT64_C(0xbf58476d1ce4e5b9);
h = (h ^ (h >> 27)) * UINT64_C(0x94d049bb133111eb);
h = (h ^ (h >> 30)) * 0xbf58476d1ce4e5b9;
h = (h ^ (h >> 27)) * 0x94d049bb133111eb;
h = h ^ (h >> 31);
return h;
}
@@ -1683,7 +1683,7 @@ MD_MapInsert(MD_Arena *arena, MD_Map *map, MD_MapKey key, void *val){
MD_MapSlot *result = 0;
if (map->bucket_count > 0){
MD_u64 index = key.hash%map->bucket_count;
MD_MapSlot *slot = MD_PushArray(arena, MD_MapSlot, 1);
MD_MapSlot *slot = MD_PushArrayZero(arena, MD_MapSlot, 1);
MD_MapBucket *bucket = &map->buckets[index];
MD_QueuePush(bucket->first, bucket->last, slot);
slot->key = key;
@@ -2970,7 +2970,7 @@ MD_ExprOperatorPush(MD_Arena *arena, MD_ExprOperatorList *list,
MD_u32 op_id, MD_ExprOperatorKind kind,
MD_u64 precedence, MD_Node *md_node)
{
MD_ExprOperatorNode *node = MD_PushArray(arena, MD_ExprOperatorNode, 1);
MD_ExprOperatorNode *node = MD_PushArrayZero(arena, MD_ExprOperatorNode, 1);
MD_QueuePush(list->first, list->last, node);
list->count += 1;
node->op.op_id = op_id;
@@ -3050,7 +3050,7 @@ MD_ExprBakeOperatorTableFromList(MD_Arena *arena, MD_ExprOperatorList *list)
if(error_str.size == 0)
{
MD_ExprOperatorList *list = result.table+op.kind;
MD_ExprOperatorNode *op_node_copy = MD_PushArray(arena, MD_ExprOperatorNode, 1);
MD_ExprOperatorNode *op_node_copy = MD_PushArrayZero(arena, MD_ExprOperatorNode, 1);
MD_QueuePush(list->first, list->last, op_node_copy);
list->count += 1;
op_node_copy->op = op;
@@ -3408,6 +3408,7 @@ MD_S8ListPush(arena, out, indent_string);\
MD_S8ListPush(arena, out, MD_S8Fmt(arena, "// string hash: 0x%llx\n", node->string_hash));
}
//- rjf: location
if(flags & MD_GenerateFlag_Location)
{
MD_PrintIndent(indent);
source/md.h
+6 -9
View File
@@ -77,8 +77,8 @@
# define MD_DEFAULT_SCRATCH 1
#endif
#if !defined(MD_DISABLE_PRINT_HELPERS)
# define MD_DISABLE_PRINT_HELPERS 0
#if !defined(MD_ENABLE_PRINT_HELPERS)
# define MD_ENABLE_PRINT_HELPERS 0
#endif
@@ -316,8 +316,9 @@
//~ Linkage Wrappers
#if !defined(MD_FUNCTION)
# define MD_FUNCTION static
# define MD_FUNCTION
#endif
#define MD_FUNCTION_IMPL MD_FUNCTION
#if !defined(MD_GLOBAL)
# define MD_GLOBAL static
@@ -1047,7 +1048,7 @@ MD_FUNCTION MD_ParseResult MD_ParseResultZero(void);
MD_FUNCTION MD_ParseResult MD_ParseNodeSet(MD_Arena *arena, MD_String8 string, MD_u64 offset, MD_Node *parent,
MD_ParseSetRule rule);
MD_FUNCTION MD_ParseResult MD_ParseOneNode(MD_Arena *arena, MD_String8 string, MD_u64 offset);
MD_FUNCTION MD_ParseResult MD_ParseWholeString(MD_Arena *arena, MD_String8 name, MD_String8 contents);
MD_FUNCTION MD_ParseResult MD_ParseWholeString(MD_Arena *arena, MD_String8 filename, MD_String8 contents);
MD_FUNCTION MD_ParseResult MD_ParseWholeFile(MD_Arena *arena, MD_String8 filename);
@@ -1105,7 +1106,7 @@ MD_FUNCTION MD_String8 MD_StringFromMessageKind(MD_MessageKind kind);
MD_FUNCTION MD_String8 MD_FormatMessage(MD_Arena *arena, MD_CodeLoc loc, MD_MessageKind kind,
MD_String8 string);
#if !MD_DISABLE_PRINT_HELPERS
#if MD_ENABLE_PRINT_HELPERS
#include <stdio.h>
MD_FUNCTION void MD_PrintMessage(FILE *file, MD_CodeLoc loc, MD_MessageKind kind,
MD_String8 string);
@@ -1139,10 +1140,6 @@ MD_FUNCTION void MD_ReconstructionFromNode(MD_Arena *arena, MD_String8List *out,
int indent, MD_String8 indent_string,
MD_GenerateFlags flags);
#if !MD_DISABLE_PRINT_HELPERS
MD_FUNCTION void MD_PrintDebugDumpFromNode(FILE *file, MD_Node *node, MD_GenerateFlags flags);
#endif
//~ Command Line Argument Helper
MD_FUNCTION MD_String8List MD_StringListFromArgCV(MD_Arena *arena, int argument_count,
source/md_c_helpers.c
+1 -1
View File
@@ -174,7 +174,7 @@ MD_FUNCTION_IMPL MD_C_Expr *
MD_C_MakeExpr(MD_Arena *arena, MD_Node *node, MD_C_ExprKind kind, MD_C_Expr *left,
MD_C_Expr *right)
{
MD_C_Expr *expr = MD_PushArray(arena, MD_C_Expr, 1);
MD_C_Expr *expr = MD_PushArrayZero(arena, MD_C_Expr, 1);
if(left == 0) left = MD_C_NilExpr();
if(right == 0) right = MD_C_NilExpr();
expr->node = node;