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[test] Add cairo_test_NaN and use it in place of strtod

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strtod("NaN") returns 0.0 with the MSVC runtime so we
need to generate NaN some other way.
This commit is contained in:
Jeff Muizelaar 2009-02-11 15:24:20 -05:00
parent 70297f257d
commit 41cbd935f9
3 changed files with 17 additions and 2 deletions
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15
test/cairo-test.h
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@ -64,6 +64,21 @@ typedef unsigned __int64 uint64_t;
#include <math.h>
static inline double
cairo_test_NaN (void)
{
#ifdef _MSC_VER
/* MSVC strtod("NaN", NULL) returns 0.0 */
union {
uint32_t i[2];
double d;
} nan = {{0xffffffff, 0x7fffffff}};
return nan.d;
#else
return strtod("NaN", NULL);
#endif
}
typedef enum cairo_test_status {
CAIRO_TEST_SUCCESS = 0,
CAIRO_TEST_NO_MEMORY,

2
test/invalid-matrix.c
View file

@ -74,7 +74,7 @@ if ((status) == CAIRO_STATUS_SUCCESS) { \
#endif
/* create a bogus matrix and check results of attempted inversion */
bogus.x0 = bogus.xy = bogus.xx = strtod ("NaN", NULL);
bogus.x0 = bogus.xy = bogus.xx = cairo_test_NaN ();
bogus.y0 = bogus.yx = bogus.yy = bogus.xx;
status = cairo_matrix_invert (&bogus);
CHECK_STATUS (status, "cairo_matrix_invert(NaN)");

2
test/user-font-rescale.c
View file

@ -211,7 +211,7 @@ create_rescaled_font (cairo_font_face_t *substitute_font,
for (i = 0; i < r->glyph_count; i++) {
r->desired_width[i] = desired_width[i];
/* use NaN to specify unset */
r->rescale_factor[i] = strtod ("NaN", NULL);
r->rescale_factor[i] = cairo_test_NaN ();
}
status = cairo_font_face_set_user_data (user_font_face,