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msvcirt: Implement istream::operator>> for floats. 

Signed-off-by: Iván Matellanes <matellanesivan@gmail.com>
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Iván Matellanes 2016-08-03 10:34:27 +01:00 committed by Alexandre Julliard
parent d8bb77d842
commit 9736024e99
2 changed files with 102 additions and 4 deletions
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37
dlls/msvcirt/msvcirt.c
View File

@ -21,6 +21,7 @@
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <float.h>
#include <io.h> #include <io.h>
#include <limits.h> #include <limits.h>
#include <share.h> #include <share.h>
@ -3661,12 +3662,42 @@ istream* __thiscall istream_read_unsigned_long(istream *this, ULONG *p)
return this; return this;
} }
static BOOL istream_internal_read_float(istream *this, int max_chars, double *out)
{
char buffer[32];
BOOL read = FALSE;
TRACE("(%p %d %p)\n", this, max_chars, out);
if (istream_ipfx(this, 0)) {
/* character count is limited on Windows */
if (istream_getdouble(this, buffer, max_chars) > 0) {
*out = strtod(buffer, NULL);
read = TRUE;
}
istream_isfx(this);
}
return read;
}
/* ??5istream@@QAEAAV0@AAM@Z */ /* ??5istream@@QAEAAV0@AAM@Z */
/* ??5istream@@QEAAAEAV0@AEAM@Z */ /* ??5istream@@QEAAAEAV0@AEAM@Z */
DEFINE_THISCALL_WRAPPER(istream_read_float, 8) DEFINE_THISCALL_WRAPPER(istream_read_float, 8)
istream* __thiscall istream_read_float(istream *this, float *f) istream* __thiscall istream_read_float(istream *this, float *f)
{ {
FIXME("(%p %p) stub\n", this, f); double tmp;
if (istream_internal_read_float(this, 20, &tmp)) {
/* check whether the value fits in the output var */
if (tmp > FLT_MAX)
tmp = FLT_MAX;
else if (tmp < -FLT_MAX)
tmp = -FLT_MAX;
else if (tmp > 0 && tmp < FLT_MIN)
tmp = FLT_MIN;
else if (tmp < 0 && tmp > -FLT_MIN)
tmp = -FLT_MIN;
*f = tmp;
}
return this; return this;
} }
@ -3675,7 +3706,7 @@ istream* __thiscall istream_read_float(istream *this, float *f)
DEFINE_THISCALL_WRAPPER(istream_read_double, 8) DEFINE_THISCALL_WRAPPER(istream_read_double, 8)
istream* __thiscall istream_read_double(istream *this, double *d) istream* __thiscall istream_read_double(istream *this, double *d)
{ {
FIXME("(%p %p) stub\n", this, d); istream_internal_read_float(this, 28, d);
return this; return this;
} }
@ -3684,7 +3715,7 @@ istream* __thiscall istream_read_double(istream *this, double *d)
DEFINE_THISCALL_WRAPPER(istream_read_long_double, 8) DEFINE_THISCALL_WRAPPER(istream_read_long_double, 8)
istream* __thiscall istream_read_long_double(istream *this, double *ld) istream* __thiscall istream_read_long_double(istream *this, double *ld)
{ {
FIXME("(%p %p) stub\n", this, ld); istream_internal_read_float(this, 32, ld);
return this; return this;
} }

69
dlls/msvcirt/tests/msvcirt.c
View File

@ -335,6 +335,9 @@ static istream* (*__thiscall p_istream_read_int)(istream*, int*);
static istream* (*__thiscall p_istream_read_unsigned_int)(istream*, unsigned int*); static istream* (*__thiscall p_istream_read_unsigned_int)(istream*, unsigned int*);
static istream* (*__thiscall p_istream_read_long)(istream*, LONG*); static istream* (*__thiscall p_istream_read_long)(istream*, LONG*);
static istream* (*__thiscall p_istream_read_unsigned_long)(istream*, ULONG*); static istream* (*__thiscall p_istream_read_unsigned_long)(istream*, ULONG*);
static istream* (*__thiscall p_istream_read_float)(istream*, float*);
static istream* (*__thiscall p_istream_read_double)(istream*, double*);
static istream* (*__thiscall p_istream_read_long_double)(istream*, double*);
/* Emulate a __thiscall */ /* Emulate a __thiscall */
#ifdef __i386__ #ifdef __i386__
@ -558,6 +561,9 @@ static BOOL init(void)
SET(p_istream_read_unsigned_int, "??5istream@@QEAAAEAV0@AEAI@Z"); SET(p_istream_read_unsigned_int, "??5istream@@QEAAAEAV0@AEAI@Z");
SET(p_istream_read_long, "??5istream@@QEAAAEAV0@AEAJ@Z"); SET(p_istream_read_long, "??5istream@@QEAAAEAV0@AEAJ@Z");
SET(p_istream_read_unsigned_long, "??5istream@@QEAAAEAV0@AEAK@Z"); SET(p_istream_read_unsigned_long, "??5istream@@QEAAAEAV0@AEAK@Z");
SET(p_istream_read_float, "??5istream@@QEAAAEAV0@AEAM@Z");
SET(p_istream_read_double, "??5istream@@QEAAAEAV0@AEAN@Z");
SET(p_istream_read_long_double, "??5istream@@QEAAAEAV0@AEAO@Z");
} else { } else {
p_operator_new = (void*)GetProcAddress(msvcrt, "??2@YAPAXI@Z"); p_operator_new = (void*)GetProcAddress(msvcrt, "??2@YAPAXI@Z");
p_operator_delete = (void*)GetProcAddress(msvcrt, "??3@YAXPAX@Z"); p_operator_delete = (void*)GetProcAddress(msvcrt, "??3@YAXPAX@Z");
@ -703,6 +709,9 @@ static BOOL init(void)
SET(p_istream_read_unsigned_int, "??5istream@@QAEAAV0@AAI@Z"); SET(p_istream_read_unsigned_int, "??5istream@@QAEAAV0@AAI@Z");
SET(p_istream_read_long, "??5istream@@QAEAAV0@AAJ@Z"); SET(p_istream_read_long, "??5istream@@QAEAAV0@AAJ@Z");
SET(p_istream_read_unsigned_long, "??5istream@@QAEAAV0@AAK@Z"); SET(p_istream_read_unsigned_long, "??5istream@@QAEAAV0@AAK@Z");
SET(p_istream_read_float, "??5istream@@QAEAAV0@AAM@Z");
SET(p_istream_read_double, "??5istream@@QAEAAV0@AAN@Z");
SET(p_istream_read_long_double, "??5istream@@QAEAAV0@AAO@Z");
} }
SET(p_ios_static_lock, "?x_lockc@ios@@0U_CRT_CRITICAL_SECTION@@A"); SET(p_ios_static_lock, "?x_lockc@ios@@0U_CRT_CRITICAL_SECTION@@A");
SET(p_ios_lockc, "?lockc@ios@@KAXXZ"); SET(p_ios_lockc, "?lockc@ios@@KAXXZ");
@ -4892,9 +4901,11 @@ static void test_istream_read(void)
unsigned un, uint_out[] = {4294967295u, 4294967294u, 2147483648u, 1u}; unsigned un, uint_out[] = {4294967295u, 4294967294u, 2147483648u, 1u};
LONG l, long_out[] = {2147483647l, -2147483647l-1}; LONG l, long_out[] = {2147483647l, -2147483647l-1};
ULONG ul, ulong_out[] = {4294967295ul, 4294967294ul, 2147483648ul, 1ul}; ULONG ul, ulong_out[] = {4294967295ul, 4294967294ul, 2147483648ul, 1ul};
float f, float_out[] = {123.456f, 0.0f, 1.0f, 0.1f, -1.0f, -0.1f, FLT_MIN, -FLT_MIN, FLT_MAX, -FLT_MAX};
double d, double_out[] = {1.0, 0.1, 0.0, INFINITY, -INFINITY};
struct istream_read_test { struct istream_read_test {
enum { type_chr, type_str, type_shrt, type_ushrt, type_int, type_uint, enum { type_chr, type_str, type_shrt, type_ushrt, type_int, type_uint,
type_long, type_ulong } type; type_long, type_ulong, type_flt, type_dbl, type_ldbl } type;
const char *stream_content; const char *stream_content;
ios_flags flags; ios_flags flags;
int width; int width;
@ -4992,6 +5003,44 @@ static void test_istream_read(void)
{type_ulong, "-2147483648", 0, 6, /* 2147483648 */ 2, IOSTATE_eofbit, 6, 11, FALSE}, {type_ulong, "-2147483648", 0, 6, /* 2147483648 */ 2, IOSTATE_eofbit, 6, 11, FALSE},
{type_ulong, "-4294967295", 0, 6, /* 1 */ 3, IOSTATE_eofbit, 6, 11, FALSE}, {type_ulong, "-4294967295", 0, 6, /* 1 */ 3, IOSTATE_eofbit, 6, 11, FALSE},
{type_ulong, "-9999999999999", 0, 6, /* 1 */ 3, IOSTATE_eofbit, 6, 14, FALSE}, {type_ulong, "-9999999999999", 0, 6, /* 1 */ 3, IOSTATE_eofbit, 6, 14, FALSE},
/* float */
{type_flt, "", FLAGS_skipws, 6, /* 123.456 */ 0, IOSTATE_faileof, 6, 0, FALSE},
{type_flt, "", 0, 6, /* 123.456 */ 0, IOSTATE_faileof, 6, 0, FALSE},
{type_flt, " 0", 0, 6, /* 123.456 */ 0, IOSTATE_failbit, 6, 0, FALSE},
{type_flt, " 0", FLAGS_skipws, 6, /* 0.0 */ 1, IOSTATE_eofbit, 6, 2, FALSE},
{type_flt, "-0 ", 0, 6, /* 0.0 */ 1, IOSTATE_goodbit, 6, 2, FALSE},
{type_flt, "+1.0", 0, 6, /* 1.0 */ 2, IOSTATE_eofbit, 6, 4, FALSE},
{type_flt, "1.#INF", 0, 6, /* 1.0 */ 2, IOSTATE_goodbit, 6, 2, FALSE},
{type_flt, "0.100000000000000e1", 0, 6, /* 1.0 */ 2, IOSTATE_eofbit, 6, 19, FALSE},
/* crashes on xp
{type_flt, "0.1000000000000000e1", 0, 6, 0.1 3, IOSTATE_failbit, 6, 20, FALSE}, */
{type_flt, "0.10000000000000000e1", 0, 6, /* 0.1 */ 3, IOSTATE_failbit, 6, 20, TRUE},
{type_flt, "-0.10000000000000e1", 0, 6, /* -1.0 */ 4, IOSTATE_eofbit, 6, 19, FALSE},
/* crashes on xp
{type_flt, "-0.100000000000000e1 ", 0, 6, -0.1 5, IOSTATE_failbit, 6, 20, FALSE}, */
{type_flt, "-0.1000000000000000e1", 0, 6, /* -0.1 */ 5, IOSTATE_failbit, 6, 20, TRUE},
{type_flt, "5.1691126e-77", 0, 6, /* FLT_MIN */ 6, IOSTATE_eofbit, 6, 13, FALSE},
{type_flt, "-2.49873e-41f", 0, 6, /* -FLT_MIN */ 7, IOSTATE_goodbit, 6, 12, FALSE},
{type_flt, "1.23456789e1234", 0, 6, /* FLT_MAX */ 8, IOSTATE_eofbit, 6, 15, FALSE},
{type_flt, "-1.23456789e1234", 0, 6, /* -FLT_MAX */ 9, IOSTATE_eofbit, 6, 16, FALSE},
/* double */
{type_dbl, "0.10000000000000000000000e1", 0, 6, /* 1.0 */ 0, IOSTATE_eofbit, 6, 27, FALSE},
/* crashes on xp
{type_dbl, "0.100000000000000000000000e1", 0, 6, 0.1 1, IOSTATE_failbit, 6, 28, FALSE}, */
{type_dbl, "0.1000000000000000000000000e1", 0, 6, /* 0.1 */ 1, IOSTATE_failbit, 6, 28, TRUE},
{type_dbl, "3.698124698114778e-6228", 0, 6, /* 0.0 */ 2, IOSTATE_eofbit, 6, 23, FALSE},
{type_dbl, "-3.698124698114778e-6228", 0, 6, /* 0.0 */ 2, IOSTATE_eofbit, 6, 24, FALSE},
{type_dbl, "3.698124698114778e6228", 0, 6, /* INF */ 3, IOSTATE_eofbit, 6, 22, FALSE},
{type_dbl, "-3.698124698114778e6228A", 0, 6, /* -INF */ 4, IOSTATE_goodbit, 6, 23, FALSE},
/* long double */
{type_ldbl, "0.100000000000000000000000000e1", 0, 6, /* 1.0 */ 0, IOSTATE_eofbit, 6, 31, FALSE},
/* crashes on xp
{type_ldbl, "0.1000000000000000000000000000e1", 0, 6, 0.1 1, IOSTATE_failbit, 6, 32, FALSE}, */
{type_ldbl, "0.10000000000000000000000000000e1", 0, 6, /* 0.1 */ 1, IOSTATE_failbit, 6, 32, TRUE},
{type_ldbl, "1.69781699841e-1475", 0, 6, /* 0.0 */ 2, IOSTATE_eofbit, 6, 19, FALSE},
{type_ldbl, "-1.69781699841e-1475l", 0, 6, /* 0.0 */ 2, IOSTATE_goodbit, 6, 20, FALSE},
{type_ldbl, "1.69781699841e1475", 0, 6, /* INF */ 3, IOSTATE_eofbit, 6, 18, FALSE},
{type_ldbl, "-1.69781699841e1475", 0, 6, /* -INF */ 4, IOSTATE_eofbit, 6, 19, FALSE},
}; };
pssb = call_func2(p_strstreambuf_dynamic_ctor, &ssb, 64); pssb = call_func2(p_strstreambuf_dynamic_ctor, &ssb, 64);
@ -5060,6 +5109,24 @@ static void test_istream_read(void)
ok(ul == ulong_out[tests[i].expected_val], "Test %d: expected %u got %u\n", i, ok(ul == ulong_out[tests[i].expected_val], "Test %d: expected %u got %u\n", i,
ulong_out[tests[i].expected_val], ul); ulong_out[tests[i].expected_val], ul);
break; break;
case type_flt:
f = 123.456f;
pis = call_func2(p_istream_read_float, &is, &f);
ok(f == float_out[tests[i].expected_val], "Test %d: expected %f got %f\n", i,
float_out[tests[i].expected_val], f);
break;
case type_dbl:
d = 123.456;
pis = call_func2(p_istream_read_double, &is, &d);
ok(d == double_out[tests[i].expected_val], "Test %d: expected %f got %f\n", i,
double_out[tests[i].expected_val], d);
break;
case type_ldbl:
d = 123.456;
pis = call_func2(p_istream_read_long_double, &is, &d);
ok(d == double_out[tests[i].expected_val], "Test %d: expected %f got %f\n", i,
double_out[tests[i].expected_val], d);
break;
} }
ok(pis == &is, "Test %d: wrong return, expected %p got %p\n", i, &is, pis); ok(pis == &is, "Test %d: wrong return, expected %p got %p\n", i, &is, pis);