Files
harbour-core/harbour/tests/mathtest.prg
Viktor Szakats 89b2cb7d90 2012-10-03 22:45 UTC+0200 Viktor Szakats (harbour syenar.net)
* website/*
    + set eol-style to native for all text files
    ! fixed inconsistent EOL in 3rd party .js files

  * contrib/hbct/tests/addascii.prg
  * contrib/hbct/tests/ctwtest.prg
  * contrib/hbct/tests/math.prg
  * contrib/hbct/tests/num1.prg
  * contrib/hbct/tests/trig.prg
  * contrib/hbnf/clrsel.prg
  * contrib/hbnf/menu1.prg
  * contrib/hbnf/sqzn.prg
  * tests/db_brows.prg
  * tests/fsplit.prg
  * tests/mathtest.prg
  * tests/newrdd.prg
  * tests/round.prg
  * tests/say.prg
  * tests/scroll.prg
  * tests/teststr.prg
  * tests/transtst.prg
  * tests/wvtext.prg
    ! fixed to use inkey.ch macros instead of literals
    * corrected hbformat mistakes
2012-10-03 20:56:06 +00:00

96 lines
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/*
* $Id$
*/
#include "hbmath.ch"
PROCEDURE Main()
LOCAL nOldMathErrMode
LOCAL bOldMathErr
? "Testing math function: EXP(), LOG() and SQRT():"
?
? " I) Test with correct arguments:"
? " exp(0.0) == 1.00 ? ", Exp( 0.0 )
? " exp(1.0) == 2.71(8)... ? ", Exp( 1.0 )
? " exp(-1.0) == 0.36(7)... ? ", Exp( -1.0 )
?
? " log(1.0) == 0.00 ? ", Log( 1.0 )
? " log(2.7) == 0.99(3)... ? ", Log( 2.7 )
? " log(0.36) == -1.02(1)... ? ", Log( 0.36 )
?
? " sqrt(1.0) == 1.00 ? ", Sqrt( 1.0 )
? " sqrt(4.0) == 2.00 ? ", Sqrt( 4.0 )
? " sqrt(2.0) == 1.41(4).. ? ", Sqrt( 2.0 )
?
? " II) Test with numeric but incorrect arguments:"
?
? " IIa) default error handling(by the functions themselves)"
? " exp(-1000) == 0.00 ?", Exp( -1000 )
? " exp(1000) == ****... ?", Exp( 1000 )
?
? " log(0) == ****... ?", Log( 0 )
? " log(-10) == *****... ?", Log( -10 )
?
? " sqrt(-4) == 0.00 ?", Sqrt( -4 )
?
nOldMathErrMode := hb_matherMode( HB_MATH_ERRMODE_USERDEFAULT )
? " IIb) error handling by error(hb_MathErMode() == HB_MATH_ERRMODE_USERDEFAULT)"
? " exp(-1000) == 0.00 ?", Exp( -1000 )
? " exp(1000) == ****... ?", Exp( 1000 )
?
? " log(0) == ****... ?", Log( 0 )
? " log(-10) == *****... ?", Log( -10 )
?
? " sqrt(-4) == 0.00 ?", Sqrt( -4 )
?
hb_matherMode( nOldMathErrMode )
bOldMathErr := hb_matherBlock( {| nType, cFuncname, cError, nArg1, nArg2, aInfo |;
localmatherr( nType, cFuncname, cError, nArg1, nArg2, aInfo ) } )
? " IIc) error handling by callback block(hb_MathErBlock())"
? " exp(-1000) == ?", Exp( -1000 )
? " exp(1000) == ?", Exp( 1000 )
?
? " log(0) == ?", Log( 0 )
? " log(-10) == ?", Log( -10 )
?
? " sqrt(-4) == ?", Sqrt( -4 )
hb_matherBlock( bOldMathErr )
RETURN
FUNCTION localmatherr( nType, cFuncname, cError, nArg1, nArg2, aInfo )
LOCAL cStr := "!! Local handling of math error MATH/"
cStr += hb_ntos( nType ) + " in " + cFuncname + "("
IF ValType( nArg1 ) == "N"
cStr += hb_ntos( nArg1 )
ENDIF
IF ValType( nArg2 ) == "N"
cStr += "," + hb_ntos( nArg2 )
ENDIF
cStr += "):"
? cStr
? "!! " + cError
IF aInfo[HB_MATHERRORBLOCK_HANDLED]
? "!! --> already handled with return value: " + ;
hb_ntos( aInfo[HB_MATHERRORBLOCK_RETVAL] )
RETURN 1
ENDIF
? "!! setting return value to --> 5.0"
aInfo[ HB_MATHERRORBLOCK_RETVAL ] := 5.0
aInfo[ HB_MATHERRORBLOCK_HANDLED ] := .T.
RETURN 1