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public: simplify Q_ato{i,f} implementation

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This commit is contained in:
Alibek Omarov 2024-07-04 06:30:59 +03:00
parent 45c4362ae6
commit 6243dc7913
1 changed files with 46 additions and 37 deletions
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83
public/crtlib.c
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@ -60,18 +60,46 @@ size_t Q_colorstr( const char *string )
return len;
}
static int Q_atoi_hex( int sign, const char *str )
{
int c, val = 0;
str += 2;
while( 1 )
{
c = *str++;
if( c >= '0' && c <= '9' ) val = (val<<4) + c - '0';
else if( c >= 'a' && c <= 'f' ) val = (val<<4) + c - 'a' + 10;
else if( c >= 'A' && c <= 'F' ) val = (val<<4) + c - 'A' + 10;
else return val * sign;
}
}
static int Q_atoi_character( int sign, const char *str )
{
return sign * str[1];
}
static const char *Q_atoi_strip_whitespace( const char *str )
{
while( str && *str == ' ' )
str++;
return str;
}
int Q_atoi( const char *str )
{
int val = 0;
int c, sign;
if( !str ) return 0;
if( !COM_CheckString( str ))
return 0;
// check for empty charachters in string
while( str && *str == ' ' )
str++;
str = Q_atoi_strip_whitespace( str );
if( !str ) return 0;
if( !COM_CheckString( str ))
return 0;
if( *str == '-' )
{
@ -82,21 +110,11 @@ int Q_atoi( const char *str )
// check for hex
if( str[0] == '0' && ( str[1] == 'x' || str[1] == 'X' ))
{
str += 2;
while( 1 )
{
c = *str++;
if( c >= '0' && c <= '9' ) val = (val<<4) + c - '0';
else if( c >= 'a' && c <= 'f' ) val = (val<<4) + c - 'a' + 10;
else if( c >= 'A' && c <= 'F' ) val = (val<<4) + c - 'A' + 10;
else return val * sign;
}
}
return Q_atoi_hex( sign, str );
// check for character
if( str[0] == '\'' )
return sign * str[1];
return Q_atoi_character( sign, str );
// assume decimal
while( 1 )
@ -114,13 +132,13 @@ float Q_atof( const char *str )
double val = 0;
int c, sign, decimal, total;
if( !str ) return 0.0f;
if( !COM_CheckString( str ))
return 0;
// check for empty charachters in string
while( str && *str == ' ' )
str++;
str = Q_atoi_strip_whitespace( str );
if( !str ) return 0.0f;
if( !COM_CheckString( str ))
return 0;
if( *str == '-' )
{
@ -131,20 +149,11 @@ float Q_atof( const char *str )
// check for hex
if( str[0] == '0' && ( str[1] == 'x' || str[1] == 'X' ))
{
str += 2;
while( 1 )
{
c = *str++;
if( c >= '0' && c <= '9' ) val = (val * 16) + c - '0';
else if( c >= 'a' && c <= 'f' ) val = (val * 16) + c - 'a' + 10;
else if( c >= 'A' && c <= 'F' ) val = (val * 16) + c - 'A' + 10;
else return val * sign;
}
}
return Q_atoi_hex( sign, str );
// check for character
if( str[0] == '\'' ) return sign * str[1];
if( str[0] == '\'' )
return Q_atoi_character( sign, str );
// assume decimal
decimal = -1;
@ -182,7 +191,7 @@ void Q_atov( float *vec, const char *str, size_t siz )
const char *pstr, *pfront;
int j;
memset( vec, 0, sizeof( vec_t ) * siz );
memset( vec, 0, sizeof( *vec ) * siz );
pstr = pfront = str;
for( j = 0; j < siz; j++ )
@ -395,9 +404,9 @@ int Q_snprintf( char *buffer, size_t buffersize, const char *format, ... )
void COM_StripColors( const char *in, char *out )
{
while ( *in )
while( *in )
{
if ( IsColorString( in ) )
if( IsColorString( in ))
in += 2;
else *out++ = *in++;
}