Merged from silc_1_0_branch (second merge).

[silc.git] / lib / silcmath / silcmp.h

diff --git a/lib/silcmath/silcmp.h b/lib/silcmath/silcmp.h
index 72d71acb97459ed714c2114282f03d9600b3700a..ba18ae35bfe1f2d01af2fa818aba398614f0660b 100644 (file)
--- a/lib/silcmath/silcmp.h
+++ b/lib/silcmath/silcmp.h
@@ -34,7 +34,7 @@
 #ifndef SILCMP_H
 #define SILCMP_H
 
-#ifdef SILC_MP_GMP
+#if defined(SILC_MP_GMP)
 #include "mp_gmp.h"            /* SILC_MP_GMP */
 #else
 #include "mp_mpi.h"            /* SILC_MP_NSS_MPI */
@@ -106,10 +106,16 @@ size_t silc_mp_size(SilcMPInt *mp);
  *
  * DESCRIPTION
  *
- *    Return the size of the integer in base `base'. Note that this size
- *    is probably only an approximation.  However, it is guaranteed that
- *    the returned size is always at least the size of the integer, however,
- *    it may be larger.
+ *    Return the size of the integer in base `base'.
+ *
+ * NOTES
+ *
+ *    For any other base but 2 this function usually returns only an
+ *    approximated size in the base.  It is however guaranteed that the
+ *    the returned size is always at least the size of the integer or
+ *    larger.
+ *
+ *    For base 2 this returns the exact bit-size of the integer.
  *
  ***/
 size_t silc_mp_sizeinbase(SilcMPInt *mp, int base);
@@ -167,6 +173,11 @@ void silc_mp_set_si(SilcMPInt *dst, SilcInt32 si);
  *    Set `dst' integer from string `str' of base `base'. The `dst' must
  *    already be initialized.
  *
+ * NOTES
+ *
+ *    For base 2 the string must be in ASCII bit presentation, not in
+ *    binary.  Use the silc_mp_bin2mp to decode binary into integer.
+ *
  ***/
 void silc_mp_set_str(SilcMPInt *dst, const char *str, int base);
 
@@ -195,6 +206,11 @@ SilcUInt32 silc_mp_get_ui(SilcMPInt *mp);
  *    must already have space allocated. The function returns the same
  *    as `str' or NULL on error.
  *
+ * NOTES
+ *
+ *    For base 2 the returned string is in ASCII bit presentation, not
+ *    in binary.  Use the silc_mp_mp2bin to encode integer into binary.
+ *
  ***/
 char *silc_mp_get_str(char *str, SilcMPInt *mp, int base);