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write amounts out to the binary file in binary format

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This commit is contained in:
John Wiegley 2004-08-12 20:41:29 -04:00
parent 71e8d50657
commit 0f2ed1f5e3
1 changed files with 18 additions and 4 deletions
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22
amount.cc
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@ -646,8 +646,7 @@ void amount_t::parse(std::istream& in)
unsigned int flags = COMMODITY_STYLE_DEFAULTS;;
unsigned int precision = MAX_PRECISION;
if (! quantity)
_init();
INIT();
char c = peek_next_nonws(in);
if (std::isdigit(c) || c == '.' || c == '-') {
@ -732,14 +731,26 @@ void amount_t::parse(std::istream& in)
delete[] buf;
}
// If necessary, amounts may be recorded in a binary file textually.
// This offers little advantage, and requires binary<->decimal
// conversion each time the file is saved or loaded.
//
//#define WRITE_AMOUNTS_TEXTUALLY
static char buf[4096];
void amount_t::write_quantity(std::ostream& out) const
{
unsigned short len;
if (quantity) {
#ifdef WRITE_AMOUNTS_TEXTUALLY
mpz_get_str(buf, 10, MPZ(quantity));
len = std::strlen(buf);
#else
std::size_t size;
mpz_export(buf, &size, 1, sizeof(int), 0, 0, MPZ(quantity));
len = size * sizeof(int);
#endif
assert(len);
out.write((char *)&len, sizeof(len));
out.write(buf, len);
@ -755,10 +766,13 @@ void amount_t::read_quantity(std::istream& in)
in.read((char *)&len, sizeof(len));
if (len) {
in.read(buf, len);
INIT();
#ifdef WRITE_AMOUNTS_TEXTUALLY
buf[len] = '\0';
if (! quantity)
_init();
mpz_set_str(MPZ(quantity), buf, 10);
#else
mpz_import(MPZ(quantity), len / sizeof(int), 1, sizeof(int), 0, 0, buf);
#endif
} else {
if (quantity)
_clear();