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Commit b1a3463a authored by Ken Thompson's avatar Ken Thompson
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made fp numbers from integers and 

checked values

SVN=121972
parent 36f21e00
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Showing with 72 additions and 56 deletions
test/float_lit.go
View file @ b1a3463a
......@@ -7,87 +7,103 @@
package main
func
close(a, b double) bool
pow10(pow int) double
{
if a == 0 {
if b == 0 {
if pow < 0 { return 1/pow10(-pow); }
if pow > 0 { return pow10(pow-1)*10; }
return 1;
}
func
close(da double, ia, ib int64, pow int) bool
{
db := double(ia) / double(ib);
db = db*pow10(pow);
if da == 0 {
if db == 0 {
return true;
}
return false;
}
d := a-b;
if d < 0 {
d = -d;
dd := da-db;
if dd < 0 {
dd = -dd;
}
e := a;
if e < 0 {
e = -e;
de := da;
if de < 0 {
de = -de;
}
if e*1.0e-14 > d {
if de*1.0e-14 > dd {
return true;
}
return false;
}
func main() int {
func
main()
{
if !close(0., 0.) { print "0. is ", 0., " should be ", 0., "\n"; return 1; }
if !close(+10., +10.) { print "+10. is ", +10., " should be ", +10., "\n"; return 1; }
if !close(-210., -210.) { print "-210. is ", -210., " should be ", -210., "\n"; return 1; }
if !close(0., 0, 1, 0) { print "0. is ", 0., "\n"; }
if !close(+10., 10, 1, 0) { print "+10. is ", +10., "\n"; }
if !close(-210., -210, 1, 0) { print "-210. is ", -210., "\n"; }
if !close(.0, .0) { print ".0 is ", .0, " should be ", .0, "\n"; return 1; }
if !close(+.01, +.01) { print "+.01 is ", +.01, " should be ", +.01, "\n"; return 1; }
if !close(-.012, -.012) { print "-.012 is ", -.012, " should be ", -.012, "\n"; return 1; }
if !close(.0, 0, 1, 0) { print ".0 is ", .0, "\n"; }
if !close(+.01, 1, 100, 0) { print "+.01 is ", +.01, "\n"; }
if !close(-.012, -12, 1000, 0) { print "-.012 is ", -.012, "\n"; }
if !close(0.0, 0.0) { print "0.0 is ", 0.0, " should be ", 0.0, "\n"; return 1; }
if !close(+10.01, +10.01) { print "+10.01 is ", +10.01, " should be ", +10.01, "\n"; return 1; }
if !close(-210.012, -210.012) { print "-210.012 is ", -210.012, " should be ", -210.012, "\n"; return 1; }
if !close(0.0, 0, 1, 0) { print "0.0 is ", 0.0, "\n"; }
if !close(+10.01, 1001, 100, 0) { print "+10.01 is ", +10.01, "\n"; }
if !close(-210.012, -210012, 1000, 0) { print "-210.012 is ", -210.012, "\n"; }
if !close(0E+1, 0E+1) { print "0E+1 is ", 0E+1, " should be ", 0E+1, "\n"; return 1; }
if !close(+10e2, +10e2) { print "+10e2 is ", +10e2, " should be ", +10e2, "\n"; return 1; }
if !close(-210e3, -210e3) { print "-210e3 is ", -210e3, " should be ", -210e3, "\n"; return 1; }
if !close(0E+1, 0, 1, 0) { print "0E+1 is ", 0E+1, "\n"; }
if !close(+10e2, 10, 1, 2) { print "+10e2 is ", +10e2, "\n"; }
if !close(-210e3, -210, 1, 3) { print "-210e3 is ", -210e3, "\n"; }
if !close(0E-1, 0E-1) { print "0E-1 is ", 0E-1, " should be ", 0E-1, "\n"; return 1; }
if !close(+0e23, +0e23) { print "+0e23 is ", +0e23, " should be ", +0e23, "\n"; return 1; }
if !close(-0e345, -0e345) { print "-0e345 is ", -0e345, " should be ", -0e345, "\n"; return 1; }
if !close(0E-1, 0, 1, 0) { print "0E-1 is ", 0E-1, "\n"; }
if !close(+0e23, 0, 1, 23) { print "+0e23 is ", +0e23, "\n"; }
if !close(-0e345, 0, 1, 345) { print "-0e345 is ", -0e345, "\n"; }
if !close(0E1, 0E1) { print "0E1 is ", 0E1, " should be ", 0E1, "\n"; return 1; }
if !close(+10e23, +10e23) { print "+10e23 is ", +10e23, " should be ", +10e23, "\n"; return 1; }
// if !close(-210e345, -210e345) { print "-210e345 is ", -210e345, " should be ", -210e345, "\n"; return 1; }
if !close(0E1, 0, 1, 1) { print "0E1 is ", 0E1, "\n"; }
if !close(+10e23, 10, 1, 23) { print "+10e23 is ", +10e23, "\n"; }
if !close(-210e34, -210, 1, 34) { print "-210e34 is ", -210e34, "\n"; }
if !close(0.E1, 0.E1) { print "0.E1 is ", 0.E1, " should be ", 0.E1, "\n"; return 1; }
if !close(+10.e+2, +10.e+2) { print "+10.e+2 is ", +10.e+2, " should be ", +10.e+2, "\n"; return 1; }
if !close(-210.e-3, -210.e-3) { print "-210.e-3 is ", -210.e-3, " should be ", -210.e-3, "\n"; return 1; }
if !close(0.E1, 0, 1, 1) { print "0.E1 is ", 0.E1, "\n"; }
if !close(+10.e+2, 10, 1, 2) { print "+10.e+2 is ", +10.e+2, "\n"; }
if !close(-210.e-3, -210, 1, -3) { print "-210.e-3 is ", -210.e-3, "\n"; }
if !close(.0E1, .0E1) { print ".0E1 is ", .0E1, " should be ", .0E1, "\n"; return 1; }
if !close(+.01e2, +.01e2) { print "+.01e2 is ", +.01e2, " should be ", +.01e2, "\n"; return 1; }
if !close(-.012e3, -.012e3) { print "-.012e3 is ", -.012e3, " should be ", -.012e3, "\n"; return 1; }
if !close(.0E1, 0, 1, 1) { print ".0E1 is ", .0E1, "\n"; }
if !close(+.01e2, 1, 100, 2) { print "+.01e2 is ", +.01e2, "\n"; }
if !close(-.012e3, -12, 1000, 3) { print "-.012e3 is ", -.012e3, "\n"; }
if !close(0.0E1, 0.0E1) { print "0.0E1 is ", 0.0E1, " should be ", 0.0E1, "\n"; return 1; }
if !close(+10.01e2, +10.01e2) { print "+10.01e2 is ", +10.01e2, " should be ", +10.01e2, "\n"; return 1; }
if !close(-210.012e3, -210.012e3) { print "-210.012e3 is ", -210.012e3, " should be ", -210.012e3, "\n"; return 1; }
if !close(0.0E1, 0, 1, 0) { print "0.0E1 is ", 0.0E1, "\n"; }
if !close(+10.01e2, 1001, 100, 2) { print "+10.01e2 is ", +10.01e2, "\n"; }
if !close(-210.012e3, -210012, 1000, 3) { print "-210.012e3 is ", -210.012e3, "\n"; }
if !close(0.E+12, 0.E+12) { print "0.E+12 is ", 0.E+12, " should be ", 0.E+12, "\n"; return 1; }
if !close(+10.e23, +10.e23) { print "+10.e23 is ", +10.e23, " should be ", +10.e23, "\n"; return 1; }
if !close(-210.e34, -210.e34) { print "-210.e34 is ", -210.e34, " should be ", -210.e34, "\n"; return 1; }
if !close(0.E+12, 0, 1, 0) { print "0.E+12 is ", 0.E+12, "\n"; }
if !close(+10.e23, 10, 1, 23) { print "+10.e23 is ", +10.e23, "\n"; }
if !close(-210.e33, -210, 1, 33) { print "-210.e33 is ", -210.e33, "\n"; }
if !close(.0E-12, .0E-12) { print ".0E-12 is ", .0E-12, " should be ", .0E-12, "\n"; return 1; }
if !close(+.01e23, +.01e23) { print "+.01e23 is ", +.01e23, " should be ", +.01e23, "\n"; return 1; }
if !close(-.012e34, -.012e34) { print "-.012e34 is ", -.012e34, " should be ", -.012e34, "\n"; return 1; }
if !close(.0E-12, 0, 1, 0) { print ".0E-12 is ", .0E-12, "\n"; }
if !close(+.01e23, 1, 100, 23) { print "+.01e23 is ", +.01e23, "\n"; }
if !close(-.012e34, -12, 1000, 34) { print "-.012e34 is ", -.012e34, "\n"; }
if !close(0.0E12, 0.0E12) { print "0.0E12 is ", 0.0E12, " should be ", 0.0E12, "\n"; return 1; }
if !close(+10.01e23, +10.01e23) { print "+10.01e23 is ", +10.01e23, " should be ", +10.01e23, "\n"; return 1; }
if !close(-210.012e34, -210.012e34) { print "-210.012e34 is ", -210.012e34, " should be ", -210.012e34, "\n"; return 1; }
if !close(0.0E12, 0, 1, 12) { print "0.0E12 is ", 0.0E12, "\n"; }
if !close(+10.01e23, 1001, 100, 23) { print "+10.01e23 is ", +10.01e23, "\n"; }
if !close(-210.012e33, -210012, 1000, 33) { print "-210.012e33 is ", -210.012e33, "\n"; }
if !close(0.E123, 0.E123) { print "0.E123 is ", 0.E123, " should be ", 0.E123, "\n"; return 1; }
if !close(+10.e+234, +10.e+234) { print "+10.e+234 is ", +10.e+234, " should be ", +10.e+234, "\n"; return 1; }
// if !close(-210.e-345, -210.e-345) { print "-210.e-345 is ", -210.e-345, " should be ", -210.e-345, "\n"; return 1; }
if !close(0.E123, 0, 1, 123) { print "0.E123 is ", 0.E123, "\n"; }
if !close(+10.e+23, 10, 1, 23) { print "+10.e+234 is ", +10.e+234, "\n"; }
if !close(-210.e-35, -210, 1, -35) { print "-210.e-35 is ", -210.e-35, "\n"; }
if !close(.0E123, .0E123) { print ".0E123 is ", .0E123, " should be ", .0E123, "\n"; return 1; }
// if !close(+.01e234, +.01e234) { print "+.01e234 is ", +.01e234, " should be ", +.01e234, "\n"; return 1; }
// if !close(-.012e345, -.012e345) { print "-.012e345 is ", -.012e345, " should be ", -.012e345, "\n"; return 1; }
if !close(.0E123, 0, 1, 123) { print ".0E123 is ", .0E123, "\n"; }
if !close(+.01e29, 1, 100, 29) { print "+.01e29 is ", +.01e29, "\n"; }
if !close(-.012e29, -12, 1000, 29) { print "-.012e29 is ", -.012e29, "\n"; }
if !close(0.0E123, 0.0E123) { print "0.0E123 is ", 0.0E123, " should be ", 0.0E123, "\n"; return 1; }
// if !close(+10.01e234, +10.01e234) { print "+10.01e234 is ", +10.01e234, " should be ", +10.01e234, "\n"; return 1; }
// if !close(-210.012e345, -210.012e345) { print "-210.012e345 is ", -210.012e345, " should be ", -210.012e345, "\n"; return 1; }
if !close(0.0E123, 0, 1, 123) { print "0.0E123 is ", 0.0E123, "\n"; }
if !close(+10.01e31, 1001, 100, 31) { print "+10.01e31 is ", +10.01e31, "\n"; }
if !close(-210.012e19, -210012, 1000, 19) { print "-210.012e19 is ", -210.012e19, "\n"; }
}
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