c_src/core__flat._ffi.c

   1 /*
   2         Extern implementation of Nit module flat
   3 */
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <stdint.h>
   7 #include "core__flat._ffi.h"
   8 #ifdef ANDROID
   9         #include <android/log.h>
  10         #define PRINT_ERROR(...) (void)__android_log_print(ANDROID_LOG_WARN, "Nit", __VA_ARGS__)
  11 #else
  12         #define PRINT_ERROR(...) fprintf(stderr, __VA_ARGS__)
  13 #endif
  14 #line 16 "../lib/core/text/flat.nit"
  15
  16
  17 #include <stdio.h>
  18 #include <string.h>
  19 void flat___NativeString_native_set_char___impl( char* self, long pos, uint32_t c, long ln )
  20 {
  21 #line 1256 "../lib/core/text/flat.nit"
  22
  23
  24                 char* dst = self + pos;
  25                 switch(ln){
  26                         case 1:
  27                                 dst[0] = c;
  28                                 break;
  29                         case 2:
  30                                 dst[0] = 0xC0 | ((c & 0x7C0) >> 6);
  31                                 dst[1] = 0x80 | (c & 0x3F);
  32                                 break;
  33                         case 3:
  34                                 dst[0] = 0xE0 | ((c & 0xF000) >> 12);
  35                                 dst[1] = 0x80 | ((c & 0xFC0) >> 6);
  36                                 dst[2] = 0x80 | (c & 0x3F);
  37                                 break;
  38                         case 4:
  39                                 dst[0] = 0xF0 | ((c & 0x1C0000) >> 18);
  40                                 dst[1] = 0x80 | ((c & 0x3F000) >> 12);
  41                                 dst[2] = 0x80 | ((c & 0xFC0) >> 6);
  42                                 dst[3] = 0x80 | (c & 0x3F);
  43                                 break;
  44                 }
  45         }