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Code Issues Releases Activity

GCC4.4 doesn't like char array subscripts

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This commit is contained in:
Mathias Stearn 2009-10-15 16:13:53 -04:00
parent 7636df40d7
commit 0abfa82d54
1 changed files with 11 additions and 11 deletions
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22
util/base64.cpp
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@ -25,13 +25,13 @@ namespace mongo {
class Alphabet {
public:
Alphabet(){
encode =
encode = (unsigned char*)
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789"
"+/";
decode = (char*)malloc(257);
decode = (unsigned char*)malloc(257);
memset( decode , 0 , 256 );
for ( int i=0; i<64; i++ ){
decode[ encode[i] ] = i;
@ -44,7 +44,7 @@ namespace mongo {
}
void test(){
assert( strlen( encode ) == 64 );
assert( strlen( (char*)encode ) == 64 );
for ( int i=0; i<26; i++ )
assert( encode[i] == toupper( encode[i+26] ) );
}
@ -54,22 +54,22 @@ namespace mongo {
}
private:
const char * encode;
const unsigned char * encode;
public:
char * decode;
unsigned char * decode;
} alphabet;
void encode( stringstream& ss , const char * data , int size ){
for ( int i=0; i<size; i+=3 ){
int left = size - i;
const char * start = data + i;
const unsigned char * start = (const unsigned char*)data + i;
// byte 0
ss << alphabet.e(start[0]>>2);
// byte 1
char temp = ( start[0] << 4 );
unsigned char temp = ( start[0] << 4 );
if ( left == 1 ){
ss << alphabet.e(temp);
break;
@ -113,12 +113,12 @@ namespace mongo {
void decode( stringstream& ss , const string& s ){
uassert( "invalid base64" , s.size() % 4 == 0 );
const char * data = s.c_str();
const unsigned char * data = (const unsigned char*)s.c_str();
int size = s.size();
char buf[3];
unsigned char buf[3];
for ( int i=0; i<size; i+=4){
const char * start = data + i;
const unsigned char * start = data + i;
buf[0] = ( ( alphabet.decode[start[0]] << 2 ) & 0xFC ) | ( ( alphabet.decode[start[1]] >> 4 ) & 0x3 );
buf[1] = ( ( alphabet.decode[start[1]] << 4 ) & 0xF0 ) | ( ( alphabet.decode[start[2]] >> 2 ) & 0xF );
buf[2] = ( ( alphabet.decode[start[2]] << 6 ) & 0xC0 ) | ( ( alphabet.decode[start[3]] & 0x3F ) );
@ -130,7 +130,7 @@ namespace mongo {
len = 1;
}
}
ss.write( buf , len );
ss.write( (const char*)buf , len );
}
}