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Integer/Float Script Problem
Post 35458 by danhodges99 on Monday 14th of April 2003 05:34:39 AM
04-14-2003
Integer/Float Script Problem
Hi,
I have a script which takes a value from a file and performs calculations on it. Trouble is that this value is a float not an integer and it errors at the decimal point!
eg. 94.62
I would like to be able to detect the length of the float (in this above case, 5 characters), and simply do a cut -c on the first x characters depending on it's length. Anyone know how to detect the length of this input?
Cheers.
I have a script which takes a value from a file and performs calculations on it. Trouble is that this value is a float not an integer and it errors at the decimal point!
eg. 94.62
I would like to be able to detect the length of the float (in this above case, 5 characters), and simply do a cut -c on the first x characters depending on it's length. Anyone know how to detect the length of this input?
Cheers.
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LEARN ABOUT SUNOS
hypot
hypot(3M) Mathematical Library Functions hypot(3M) NAME
hypot, hypotf, hypotl - Euclidean distance function SYNOPSIS
cc [ flag... ] file... -lm [ library... ] #include <math.h> double hypot(double x, double y); float hypotf(float x, float y); long double hypotl(long double x, long double y); DESCRIPTION
These functions compute the length of the square root of x2+ y2without undue overflow or underflow. RETURN VALUES
Upon successful completion, these functions return the length of the hypotenuse of a right angled triangle with sides of length x2and y2PP If the correct value would cause overflow, a range error occurs and hypot(), hypotf(), and hypotl() return the value of the macro HUGE_VAL, HUGE_VALF, and HUGE_VALL, respectively. If x or y is +-Inf, +Inf is returned even if one of x or y is NaN. If x or y is NaN and the other is not +-Inf, a NaN is returned. ERRORS
These functions will fail if: Range Error The result overflows. If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, the overflow floating-point exception is raised. USAGE
hypot(x,y), hypot(y,x), and hypot(x, -y) are equivalent. hypot(x, +-0) is equivalent to fabs(x). These functions takes precautions against underflow and overflow during intermediate steps of the computation. An application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. An application should either examine the return value or check the floating point exception flags to detect exceptions. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
fabs(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), sqrt(3M), attributes(5), standards(5) SunOS 5.10 1 Sep 2002 hypot(3M)