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added sml_value_to_double() to convert arbitrary sized sml_value to floating point number

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This commit is contained in:
Steffen Vogel 2011-09-30 18:21:33 +02:00
parent 5f80b0f76b
commit 18969b3bd3
2 changed files with 24 additions and 0 deletions
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8
sml/include/sml/sml_value.h
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@ -50,6 +50,14 @@ sml_value *sml_value_parse(sml_buffer *buf);
void sml_value_write(sml_value *value, sml_buffer *buf);
void sml_value_free(sml_value *value);
/**
* Cast arbitrary sized sml_value to double
*
* @param value the sml_value which should be casted
* @return double value representation of sml_value, 0 if an error occured
*/
double sml_value_to_double(sml_value *value);
#ifdef __cplusplus
}
#endif

16
sml/src/sml_value.c
View file

@ -106,3 +106,19 @@ void sml_value_free(sml_value *value) {
}
}
double sml_value_to_double(sml_value *value) {
switch (value->type) {
case 0x51: return *value->data.int8; break;
case 0x52: return *value->data.int16; break;
case 0x54: return *value->data.int32; break;
case 0x58: return *value->data.int64; break;
case 0x61: return *value->data.uint8; break;
case 0x62: return *value->data.uint16; break;
case 0x64: return *value->data.uint32; break;
case 0x68: return *value->data.uint64; break;
default:
printf("error: unknown type in %s\n", __FUNCTION__);
return 0;
}
}