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Diffstat (limited to 'newlib/libm/common/isgreater.c')
| -rw-r--r-- | newlib/libm/common/isgreater.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/newlib/libm/common/isgreater.c b/newlib/libm/common/isgreater.c deleted file mode 100644 index bd4e95e05..000000000 --- a/newlib/libm/common/isgreater.c +++ /dev/null @@ -1,75 +0,0 @@ -/* isgreater.c: This file contains no source code, but rather only the - * man-page comments. All of the documented "functions" are actually macros - * defined in math.h (q.v.). */ -/* -FUNCTION -<<isgreater>>, <<isgreaterequal>>, <<isless>>, <<islessequal>>, <<islessgreater>>, and <<isunordered>>--comparison macros -INDEX - isgreater -INDEX - isgreaterequal -INDEX - isless -INDEX - islessequal -INDEX - islessgreater -INDEX - isunordered - -ANSI_SYNOPSIS - #include <math.h> - int isgreater(real-floating <[x]>, real-floating <[y]>); - int isgreaterequal(real-floating <[x]>, real-floating <[y]>); - int isless(real-floating <[x]>, real-floating <[y]>); - int islessequal(real-floating <[x]>, real-floating <[y]>); - int islessgreater(real-floating <[x]>, real-floating <[y]>); - int isunordered(real-floating <[x]>, real-floating <[y]>); - -DESCRIPTION -<<isgreater>>, <<isgreaterequal>>, <<isless>>, <<islessequal>>, -<<islessgreater>>, and <<isunordered>> are macros defined for use in -comparing floating-point numbers without raising any floating-point -exceptions. - -The relational operators (i.e. <, >, <=, and >=) support the usual mathematical -relationships between numeric values. For any ordered pair of numeric -values exactly one of the relationships--less, greater, and equal--is -true. Relational operators may raise the "invalid" floating-point -exception when argument values are NaNs. For a NaN and a numeric value, or -for two NaNs, just the unordered relationship is true (i.e., if one or both -of the arguments a NaN, the relationship is called unordered). The specified -macros are quiet (non floating-point exception raising) versions of the -relational operators, and other comparison macros that facilitate writing -efficient code that accounts for NaNs without suffering the "invalid" -floating-point exception. In the synopses shown, "real-floating" indicates -that the argument is an expression of real floating type. - -Please note that saying that the macros do not raise floating-point -exceptions, it is referring to the function that they are performing. It -is certainly possible to give them an expression which causes an exception. -For example: -o+ -o NaN < 1.0 - causes an "invalid" exception, -o isless(NaN, 1.0) - does not, and -o isless(NaN*0., 1.0) - causes an exception due to the "NaN*0.", but not from the -resultant reduced comparison of isless(NaN, 1.0). -o- - -RETURNS -@comment Formatting note: "$@" forces a new line -No floating-point exceptions are raised for any of the macros.@* -The <<isgreater>> macro returns the value of (x) > (y).@* -The <<isgreaterequal>> macro returns the value of (x) >= (y).@* -The <<isless>> macro returns the value of (x) < (y).@* -The <<islessequal>> macro returns the value of (x) <= (y).@* -The <<islessgreater>> macro returns the value of (x) < (y) || (x) > (y).@* -The <<isunordered>> macro returns 1 if either of its arguments is NaN and 0 otherwise. - -PORTABILITY -C99, POSIX. - -*/ |