5 #define VG_STATIC static
11 #include "vg_stdint.h"
13 /* Copyright (C) 2021-2022 Harry Godden (hgn) - All Rights Reserved */
15 typedef unsigned int uint
;
30 typedef struct vg_tex2d vg_tex2d
;
38 #define vg_static_assert _Static_assert
39 #define vg_list_size( A ) (sizeof(A)/sizeof(A[0]))
40 #define VG_MUST_USE_RESULT __attribute__((warn_unused_result))
42 enum strncpy_behaviour
{
43 k_strncpy_always_add_null
= 0,
44 k_strncpy_allow_cutoff
= 1
47 VG_STATIC u32
vg_strncpy( const char *src
, char *dst
, u32 len
,
48 enum strncpy_behaviour behaviour
)
50 for( u32 i
=0; i
<len
; i
++ ){
53 if( !src
[i
] ) return i
;
55 if( (behaviour
== k_strncpy_always_add_null
) && (i
== len
-1) ){
64 typedef struct vg_str vg_str
;
70 VG_STATIC
void vg_strnull( vg_str
*str
, char *buffer
, u32 len
)
77 VG_STATIC
void vg_strcat( vg_str
*str
, const char *append
)
79 for( u32 i
=0; str
->i
< str
->len
; i
++, str
->i
++ ){
80 str
->buffer
[ str
->i
] = append
[i
];
82 if( append
[i
] == '\0' ) return;
86 VG_STATIC
int vg_strgood( vg_str
*str
)
88 if( str
->i
== str
->len
){
89 if( str
->buffer
[str
->i
-1] == '\0' ) return 1;
93 str
->buffer
[ str
->i
++ ] = '\0';
98 VG_STATIC u32
vg_strdjb2( const char *str
)
102 while( (c
= *str
++) )
103 hash
= ((hash
<< 5) + hash
) + c
; /* hash * 33 + c */
116 #define VG_MIN( A, B ) ((A)<(B)?(A):(B))
117 #define VG_MAX( A, B ) ((A)>(B)?(A):(B))