Changeset 435 for trunk/src/stl/string.cc

Timestamp:

07/22/15 21:00:30 (10 years ago)

Author:

epyon

Message:

• short_string implementation - first usages

File:

• trunk/src/stl/string.cc (modified) (1 diff)

trunk/src/stl/string.cc

@@ -37 +37 @@
 }
 
-nv::size_t nv::sint32_to_buffer( sint32 n, char* str )
-{
-        char* s = str;
-        uint32 abs = static_cast< uint32 >( n < 0 ? -n : n );
-        do
-        {
+nv::size_t nv::sint32_to_buffer( array_ref< char > buffer, sint32 n )
+{
+        if ( buffer.size() < 2 ) return 0;
+        char* last = buffer.end() - 1;
+        char* s = buffer.begin();
+        uint32 abs = static_cast<uint32>( n < 0 ? -n : n );
+        do
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0;  }
                 *s++ = static_cast<char>( '0' + ( abs % 10 ) );
                 abs /= 10;
         } while ( abs > 0 );
-        if ( n < 0 ) *s++ = '-';
-        *s = '\0';
-        string_reverse( str, s - 1 );
-        return static_cast<nv::size_t>( s - str );
-}
-
-nv::size_t nv::sint64_to_buffer( sint64 n, char* str )
-{
-        char* s = str;
-        uint64 abs = static_cast< uint64 >( n < 0 ? -n : n );
-        do
-        {
+        if ( n < 0 )
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0; }
+                *s++ = '-';
+        }
+        *s = '\0';
+        string_reverse( buffer.begin(), s - 1 );
+        return static_cast<nv::size_t>( s - buffer.begin() );
+}
+
+nv::size_t nv::sint64_to_buffer( array_ref< char > buffer, sint64 n )
+{
+        if ( buffer.size() < 2 ) return 0;
+        char* last = buffer.end() - 1;
+        char* s = buffer.begin();
+        uint64 abs = static_cast<uint64>( n < 0 ? -n : n );
+        do
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0; }
                 *s++ = static_cast<char>( '0' + ( abs % 10 ) );
                 abs /= 10;
         } while ( abs > 0 );
-        if ( n < 0 ) *s++ = '-';
-        *s = '\0';
-        string_reverse( str, s - 1 );
-        return static_cast<nv::size_t>( s - str );
-}
-
-nv::size_t nv::uint32_to_buffer( uint32 n, char* str )
-{
-        char* s = str;
-        do
-        {
+        if ( n < 0 )
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0; }
+                *s++ = '-';
+        }
+        *s = '\0';
+        string_reverse( buffer.begin(), s - 1 );
+        return static_cast<nv::size_t>( s - buffer.begin() );
+}
+
+nv::size_t nv::uint32_to_buffer( array_ref< char > buffer, uint32 n )
+{
+        if ( buffer.size() < 2 ) return 0;
+        char* last = buffer.end() - 1;
+        char* s = buffer.begin();
+        do
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0; }
                 *s++ = static_cast<char>( '0' + ( n % 10 ) );
                 n /= 10;
         } while ( n > 0 );
         *s = '\0';
-        string_reverse( str, s - 1 );
-        return static_cast<nv::size_t>( s - str );
-}
-
-nv::size_t nv::uint64_to_buffer( uint64 n, char* str )
-{
-        char* s = str;
-        do
-        {
+        string_reverse( buffer.begin(), s - 1 );
+        return static_cast<nv::size_t>( s - buffer.begin() );
+}
+
+nv::size_t nv::uint64_to_buffer( array_ref< char > buffer, uint64 n )
+{
+        if ( buffer.size() < 2 ) return 0;
+        char* last = buffer.end() - 1;
+        char* s = buffer.begin();
+        do
+        {
+                if ( s == last ) { *buffer.begin() = '\0'; return 0; }
                 *s++ = static_cast<char>( '0' + ( n % 10 ) );
                 n /= 10;
         } while ( n > 0 );
         *s = '\0';
-        string_reverse( str, s - 1 );
-        return static_cast<nv::size_t>( s - str );
-}
-
-nv::size_t nv::f32_to_buffer( f32 n, char* str )
+        string_reverse( buffer.begin(), s - 1 );
+        return static_cast<nv::size_t>( s - buffer.begin() );
+}
+
+nv::size_t nv::f32_to_buffer( array_ref< char > buffer, f32 n )
 {
 #if NV_COMPILER == NV_MSVC
-        int result = sprintf_s( str, 64, "%.*g", 6, n );
+        int result = sprintf_s( buffer.data(), buffer.size(), "%.*g", 6, n );
 #else
-        int result = snprintf( str, 64, "%.*g", 6, n );
+        int result = snprintf( buffer.data(), buffer.size(), "%.*g", 6, n );
 #endif
         return static_cast<nv::size_t>( result > 0 ? result : 0 );
 }
 
-nv::size_t nv::f64_to_buffer( f64 n, char* str )
+nv::size_t nv::f64_to_buffer( array_ref< char > buffer, f64 n )
 {
 #if NV_COMPILER == NV_MSVC
-        int result = sprintf_s( str, 64, "%.*g", 6, n );
+        int result = sprintf_s( buffer.data(), buffer.size(), "%.*g", 6, n );
 #else
-        int result = snprintf( str, 64, "%.*g", 6, n );
+        int result = snprintf( buffer.data(), buffer.size(), "%.*g", 6, n );
 #endif
         return static_cast<nv::size_t>( result > 0 ? result : 0 );