diff options
Diffstat (limited to 'man3/nextafter.3')
| -rw-r--r-- | man3/nextafter.3 | 33 |
1 files changed, 16 insertions, 17 deletions
diff --git a/man3/nextafter.3 b/man3/nextafter.3 index 3636b55..51b770f 100644 --- a/man3/nextafter.3 +++ b/man3/nextafter.3 @@ -7,7 +7,7 @@ .\" .\" Based on glibc infopages .\" -.TH nextafter 3 2023-07-20 "Linux man-pages 6.05.01" +.TH nextafter 3 2023-10-31 "Linux man-pages 6.7" .SH NAME nextafter, nextafterf, nextafterl, nexttoward, nexttowardf, nexttowardl \- floating-point number manipulation @@ -17,21 +17,21 @@ Math library .SH SYNOPSIS .nf .B #include <math.h> -.PP +.P .BI "double nextafter(double " x ", double " y ); .BI "float nextafterf(float " x ", float " y ); .BI "long double nextafterl(long double " x ", long double " y ); -.PP +.P .BI "double nexttoward(double " x ", long double " y ); .BI "float nexttowardf(float " x ", long double " y ); .BI "long double nexttowardl(long double " x ", long double " y ); .fi -.PP +.P .RS -4 Feature Test Macro Requirements for glibc (see .BR feature_test_macros (7)): .RE -.PP +.P .BR nextafter (): .nf _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L @@ -40,7 +40,7 @@ Feature Test Macro Requirements for glibc (see || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR nextafterf (), .BR nextafterl (): .nf @@ -48,7 +48,7 @@ Feature Test Macro Requirements for glibc (see || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE .fi -.PP +.P .BR nexttoward (), .BR nexttowardf (), .BR nexttowardl (): @@ -72,14 +72,14 @@ is less than .IR x , these functions will return the largest representable number less than .IR x . -.PP +.P If .I x equals .IR y , the functions return .IR y . -.PP +.P The .BR nexttoward (), .BR nexttowardf (), @@ -96,7 +96,7 @@ these functions return the next representable floating-point value after .I x in the direction of .IR y . -.PP +.P If .I x equals @@ -106,14 +106,14 @@ then (cast to the same type as .IR x ) is returned. -.PP +.P If .I x or .I y is a NaN, a NaN is returned. -.PP +.P If .I x is finite, @@ -126,7 +126,7 @@ and the functions return or .BR HUGE_VALL , respectively, with the correct mathematical sign. -.PP +.P If .I x is not equal to @@ -140,7 +140,7 @@ See .BR math_error (7) for information on how to determine whether an error has occurred when calling these functions. -.PP +.P The following errors can occur: .TP Range error: result overflow @@ -179,10 +179,9 @@ T{ .BR nexttowardl () T} Thread safety MT-Safe .TE -.sp 1 .SH STANDARDS C11, POSIX.1-2008. -.PP +.P This function is defined in IEC 559 (and the appendix with recommended functions in IEEE 754/IEEE 854). .SH HISTORY @@ -192,7 +191,7 @@ In glibc 2.5 and earlier, these functions do not raise an underflow floating-point .RB ( FE_UNDERFLOW ) exception when an underflow occurs. -.PP +.P Before glibc 2.23 .\" https://www.sourceware.org/bugzilla/show_bug.cgi?id=6799 these functions did not set |