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# test float formatting
# general rounding
for val in (116, 1111, 1234, 5010, 11111):
print("%.0f" % val)
print("%.1f" % val)
print("%.3f" % val)
# make sure rounding is done at the correct precision
for prec in range(8):
print(("%%.%df" % prec) % 6e-5)
# check certain cases that had a digit value of 10 render as a ":" character
print("%.2e" % float("9" * 51 + "e-39"))
print("%.2e" % float("9" * 40 + "e-21"))
# check a case that would render negative digit values, eg ")" characters
# the string is converted back to a float to check for no illegal characters
float("%.23e" % 1e-80)
# Check a problem with malformed "e" format numbers on the edge of 1.0e-X.
for r in range(38):
s = "%.12e" % float("1e-" + str(r))
# It may format as 1e-r, or 9.999...e-(r+1), both are OK.
# But formatting as 0.999...e-r is NOT ok.
if s[0] == "0":
print("FAIL:", s)
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