#define vg_list_size( A ) (sizeof(A)/sizeof(A[0]))
#define VG_MUST_USE_RESULT __attribute__((warn_unused_result))
+#include <stdio.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <math.h>
+#include <assert.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 void vg_fatal_error( const char *fmt, ... );
VG_STATIC u32 vg_strncpy( const char *src, char *dst, u32 len,
enum strncpy_behaviour behaviour )
{
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" );
+ }
}
}
VG_STATIC void vg_strnull( vg_str *str, char *buffer, u32 len )
{
str->buffer = buffer;
+ str->buffer[0] = '\0';
str->i = 0;
str->len = len;
}
if( str->buffer[str->i -1] == '\0' ) return 1;
else return 0;
}
- else{
- str->buffer[ str->i ++ ] = '\0';
- return 1;
+ else return 1;
+}
+
+VG_STATIC char *vg_strch( vg_str *str, char c )
+{
+ char *ptr = NULL;
+ for( u32 i=0; i<str->i; i++ ){
+ if( str->buffer[i] == c )
+ ptr = str->buffer+i;
}
+
+ return ptr;
}
VG_STATIC u32 vg_strdjb2( const char *str )
return hash;
}
-#include <stdio.h>
-#include <dirent.h>
-#include <string.h>
-#include <stdarg.h>
-#include <ctype.h>
-#include <math.h>
-#include <assert.h>
-
#define VG_MIN( A, B ) ((A)<(B)?(A):(B))
#define VG_MAX( A, B ) ((A)>(B)?(A):(B))
#endif