X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=vg_platform.h;fp=vg_platform.h;h=52c26c0933fc67ecabb60b6bb2e5a772b6d50257;hb=6d772a1e69860f4ae3e838e8c5c164754e6533ae;hp=210192d60e7164fbf6e15ed72940bb74da6b62c6;hpb=e6f73232f1b16af430e850646215d2c9e07dde2e;p=vg.git

diff --git a/vg_platform.h b/vg_platform.h
index 210192d..52c26c0 100644
--- a/vg_platform.h
+++ b/vg_platform.h
@@ -39,17 +39,35 @@ struct vg_achievement
 #define vg_list_size( A ) (sizeof(A)/sizeof(A[0]))
 #define VG_MUST_USE_RESULT __attribute__((warn_unused_result))
 
-VG_STATIC void vg_strncpy( const char *src, char *dst, u32 len )
+enum strncpy_behaviour{
+   k_strncpy_always_add_null = 0,
+   k_strncpy_allow_cutoff = 1
+};
+
+VG_STATIC void vg_strncpy( const char *src, char *dst, u32 len,
+                           enum strncpy_behaviour behaviour )
 {
-   for( u32 i=0; i<len; i++ )
-   {
+   for( u32 i=0; i<len; i++ ){
       dst[i] = src[i];
 
       if( !src[i] )
          break;
+
+      if( (behaviour == k_strncpy_always_add_null) && (i == len-1) )
+         dst[i] = '\0';
    }
 }
 
+VG_STATIC u32 vg_strdjb2( const char *str )
+{
+   u32 hash = 5381, c;
+
+   while( (c = *str++) )
+      hash = ((hash << 5) + hash) + c; /* hash * 33 + c */
+
+   return hash;
+}
+
 #include <stdio.h>
 #include <dirent.h>
 #include <string.h>