static size_t SDL_ScanFloat(const char *text, double *valuep)
{
const char *textstart = text;
unsigned long lvalue = 0;
double value = 0.0;
SDL_bool negative = SDL_FALSE;
if ( *text == '-' ) {
negative = SDL_TRUE;
++text;
}
text += SDL_ScanUnsignedLong(text, 10, &lvalue);
value += lvalue;
if ( *text == '.' ) {
int mult = 10;
++text;
while ( SDL_isdigit((unsigned char) *text) ) {
lvalue = *text - '0';
value += (double)lvalue / mult;
mult *= 10;
++text;
}
}
if ( valuep ) {
if ( negative && value ) {
*valuep = -value;
} else {
*valuep = value;
}
}
return (text - textstart);
}
unsigned long SDL_strtoul(const char *string, char **endp, int base)
{
size_t len;
unsigned long value;
if ( !base ) {
if ( (SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0) ) {
base = 16;
} else {
base = 10;
}
}
len = SDL_ScanUnsignedLong(string, base, &value);
if ( endp ) {
*endp = (char *)string + len;
}
return value;
}
unsigned long
SDL_strtoul(const char *string, char **endp, int base)
{
#if defined(HAVE_STRTOUL)
return strtoul(string, endp, base);
#else
size_t len;
unsigned long value;
if (!base) {
if ((SDL_strlen(string) > 2) && (SDL_strncmp(string, "0x", 2) == 0)) {
base = 16;
} else {
base = 10;
}
}
len = SDL_ScanUnsignedLong(string, base, &value);
if (endp) {
*endp = (char *) string + len;
}
return value;
#endif /* HAVE_STRTOUL */
}
