#ifndef VG_PLATFORM_H
#define VG_PLATFORM_H
-#ifdef VG_RELEASE
- #define VG_STATIC static
-#else
- #define VG_STATIC
-#endif
-
//#include "vg.h"
#include "vg_stdint.h"
#define vg_list_size( A ) (sizeof(A)/sizeof(A[0]))
#define VG_MUST_USE_RESULT __attribute__((warn_unused_result))
+#include <stdio.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <math.h>
+#include <assert.h>
+#include <setjmp.h>
+#include <sys/time.h>
+#include <math.h>
+#include <stdio.h>
+#include <errno.h>
+
enum strncpy_behaviour{
k_strncpy_always_add_null = 0,
- k_strncpy_allow_cutoff = 1
+ k_strncpy_allow_cutoff = 1,
+ k_strncpy_overflow_fatal = 2
};
-VG_STATIC u32 vg_strncpy( const char *src, char *dst, u32 len,
+static void vg_fatal_error( const char *fmt, ... );
+static u32 vg_strncpy( const char *src, char *dst, u32 len,
enum strncpy_behaviour behaviour )
{
for( u32 i=0; i<len; i++ ){
if( !src[i] ) return i;
- if( (behaviour == k_strncpy_always_add_null) && (i == len-1) ){
- dst[i] = '\0';
- return i;
+ if( i == len-1 ){
+ if( behaviour == k_strncpy_always_add_null ){
+ dst[i] = '\0';
+ return i;
+ }
+ else if( behaviour == k_strncpy_overflow_fatal ){
+ vg_fatal_error( "Strncpy dest exceeded buffer length\n" );
+ }
}
}
return 0;
}
-VG_STATIC u32 vg_strdjb2( const char *str )
-{
+typedef struct vg_str vg_str;
+struct vg_str{
+ char *buffer;
+ i32 i, len;
+};
+
+static void vg_strnull( vg_str *str, char *buffer, i32 len ){
+ str->buffer = buffer;
+ str->buffer[0] = '\0';
+ str->i = 0;
+ str->len = len;
+
+ assert(len);
+}
+
+static void vg_strcat( vg_str *str, const char *append ){
+ if( !append ) return;
+ if( str->i == -1 ) return;
+
+ for( u32 i=0; str->i < str->len; str->i ++, i ++ ){
+ str->buffer[ str->i ] = append[ i ];
+
+ if( append[ i ] == '\0' )
+ return;
+ }
+
+ /* overflow */
+ str->buffer[ str->i ] = '\0';
+ str->i = -1;
+}
+
+static void vg_strcati32( vg_str *str, i32 value ){
+ if( value ){
+ char temp[32];
+ int i=0;
+ while( value && (i<31) ){
+ temp[ i ++ ] = '0' + (value % 10);
+ value /= 10;
+ }
+
+ char reverse[32];
+ for( int j=0; j<i; j ++ )
+ reverse[j] = temp[ i-1-j ];
+ reverse[i] = '\0';
+
+ vg_strcat( str, reverse );
+ }
+ else
+ vg_strcat( str, "0" );
+}
+
+static int vg_strgood( vg_str *str ){
+ if( str->i == -1 ) return 0;
+ else return 1;
+}
+
+static char *vg_strch( vg_str *str, char c ){
+ char *ptr = NULL;
+ for( i32 i=0; i<str->i; i++ ){
+ if( str->buffer[i] == c )
+ ptr = str->buffer+i;
+ }
+
+ return ptr;
+}
+
+static u32 vg_strdjb2( const char *str ){
u32 hash = 5381, c;
while( (c = *str++) )
return hash;
}
-#include <stdio.h>
-#include <dirent.h>
-#include <string.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <math.h>
-#include <assert.h>
+static int vg_strdjb2_eq( const char *s1, u32 h1,
+ const char *s2, u32 h2 )
+{
+ if( h1 == h2 ){
+ if(!strcmp(s1, s2)) return 1;
+ else return 0;
+ } else return 0;
+}
+
+#define VG_STRDJB2_EQ( CS1, S2, H2 ) \
+ vg_strdjb2_eq( CS1, vg_strdjb2(CS1), S2, H2 )
+
#define VG_MIN( A, B ) ((A)<(B)?(A):(B))
#define VG_MAX( A, B ) ((A)>(B)?(A):(B))