diff options
Diffstat (limited to 'fitz')
| -rw-r--r-- | fitz/base_string.c | 5 | ||||
| -rw-r--r-- | fitz/fitz.h | 12 |
2 files changed, 10 insertions, 7 deletions
diff --git a/fitz/base_string.c b/fitz/base_string.c index 7587f96b..8ed08911 100644 --- a/fitz/base_string.c +++ b/fitz/base_string.c @@ -248,10 +248,11 @@ float fz_atof(const char *s) * as we convert to a float. */ errno = 0; d = strtod(s, NULL); - if (errno == ERANGE || d > FLT_MAX || d < -FLT_MAX) { + if (errno == ERANGE || isnan(d)) { /* Return 1.0, as it's a small known value that won't cause a - * divide by 0. */ + divide by 0. */ return 1.0; } + d = CLAMP(d, -FLT_MAX, FLT_MAX); return (float)d; } diff --git a/fitz/fitz.h b/fitz/fitz.h index 849b07a8..03cb6f25 100644 --- a/fitz/fitz.h +++ b/fitz/fitz.h @@ -15,7 +15,7 @@ #include <assert.h> #include <errno.h> #include <limits.h> /* INT_MAX & co */ -#include <float.h> /* FLT_EPSILON */ +#include <float.h> /* FLT_EPSILON, FLT_MAX & co */ #include <fcntl.h> /* O_RDONLY & co */ #include <setjmp.h> @@ -46,6 +46,7 @@ #define MIN(a,b) ( (a) < (b) ? (a) : (b) ) #define MAX(a,b) ( (a) > (b) ? (a) : (b) ) #define CLAMP(x,a,b) ( (x) > (b) ? (b) : ( (x) < (a) ? (a) : (x) ) ) +#define DIV_BY_ZERO(a, b, min, max) (((a) < 0) ^ ((b) < 0) ? (min) : (max)) /* Some differences in libc can be smoothed over @@ -62,6 +63,7 @@ int gettimeofday(struct timeval *tv, struct timezone *tz); #define snprintf _snprintf +#define isnan _isnan #else /* Unix or close enough */ @@ -640,7 +642,7 @@ extern const fz_bbox fz_infinite_bbox; An empty rectangle is defined as one whose area is zero. */ -#define fz_is_empty_rect(r) ((r).x0 == (r).x1) +#define fz_is_empty_rect(r) ((r).x0 == (r).x1 || (r).y0 == (r).y1) /* fz_is_empty_bbox: Check if bounding box is empty. @@ -648,7 +650,7 @@ extern const fz_bbox fz_infinite_bbox; Same definition of empty bounding boxes as for empty rectangles. See fz_is_empty_rect. */ -#define fz_is_empty_bbox(b) ((b).x0 == (b).x1) +#define fz_is_empty_bbox(b) ((b).x0 == (b).x1 || (b).y0 == (b).y1) /* fz_is_infinite: Check if rectangle is infinite. @@ -656,7 +658,7 @@ extern const fz_bbox fz_infinite_bbox; An infinite rectangle is defined as one where either of the two relationships between corner coordinates are not true. */ -#define fz_is_infinite_rect(r) ((r).x0 > (r).x1) +#define fz_is_infinite_rect(r) ((r).x0 > (r).x1 || (r).y0 > (r).y1) /* fz_is_infinite_bbox: Check if bounding box is infinite. @@ -664,7 +666,7 @@ extern const fz_bbox fz_infinite_bbox; Same definition of infinite bounding boxes as for infinite rectangles. See fz_is_infinite_rect. */ -#define fz_is_infinite_bbox(b) ((b).x0 > (b).x1) +#define fz_is_infinite_bbox(b) ((b).x0 > (b).x1 || (b).y0 > (b).y1) /* fz_matrix is a a row-major 3x3 matrix used for representing |