diff options
Diffstat (limited to 'man3/fpclassify.3')
| -rw-r--r-- | man3/fpclassify.3 | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/man3/fpclassify.3 b/man3/fpclassify.3 index cfb16be..8e72dd3 100644 --- a/man3/fpclassify.3 +++ b/man3/fpclassify.3 @@ -6,7 +6,7 @@ .\" This was done with the help of the glibc manual. .\" .\" 2004-10-31, aeb, corrected -.TH fpclassify 3 2023-07-20 "Linux man-pages 6.05.01" +.TH fpclassify 3 2023-10-31 "Linux man-pages 6.7" .SH NAME fpclassify, isfinite, isnormal, isnan, isinf \- floating-point classification macros @@ -16,19 +16,19 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.P .BI "int fpclassify(" x ); .BI "int isfinite(" x ); .BI "int isnormal(" x ); .BI "int isnan(" x ); .BI "int isinf(" x ); .fi -.PP +.P .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .\" I haven't fully grokked the source to determine the FTM requirements; .\" in part, the following has been tested by experiment. .BR fpclassify (), @@ -37,7 +37,7 @@ Feature Test Macro Requirements for glibc (see .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L .fi -.PP +.P .BR isnan (): .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L @@ -45,7 +45,7 @@ Feature Test Macro Requirements for glibc (see || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR isinf (): .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L @@ -82,7 +82,7 @@ is too small to be represented in normalized format. .B FP_NORMAL if nothing of the above is correct then it must be a normal floating-point number. -.PP +.P The other macros provide a short answer to some standard questions. .TP 14 .BI isfinite( x ) @@ -122,12 +122,11 @@ T{ .BR isinf () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS C11, POSIX.1-2008. .SH HISTORY POSIX.1-2001, C99. -.PP +.P In glibc 2.01 and earlier, .BR isinf () returns a nonzero value (actually: 1) if |