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printf.jl
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printf.jl
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# This file is a part of Julia. License is MIT: https://julialang.org/license
# printf
# int
@test (@sprintf "%d" typemax(Int64)) == "9223372036854775807"
@test (@sprintf "%a" typemax(Int64)) == "0x7.fffffffffffffffp+60"
@test (@sprintf "%A" typemax(Int64)) == "0X7.FFFFFFFFFFFFFFFP+60"
#printing an int value
for (fmt, val) in (("%i", "42"),
("%u", "42"),
("Test: %i", "Test: 42"),
("%#x", "0x2a"),
("%#o", "052"),
("%x", "2a"),
("%X", "2A"),
("% i", " 42"),
("%+i", "+42"),
("%4i", " 42"),
("%-4i", "42 "),
("%a", "0x2.ap+4"),
("%A", "0X2.AP+4"),
("%20a"," 0x2.ap+4"),
("%-20a","0x2.ap+4 "),
("%f", "42.000000"),
("%g", "42")),
num in (UInt16(42), UInt32(42), UInt64(42), UInt128(42),
Int16(42), Int32(42), Int64(42), Int128(42))
#big"42" causes stack overflow on %a ; gh #14409
@test @eval(@sprintf($fmt, $num) == $val)
end
# pointers
if Sys.WORD_SIZE == 64
@test (@sprintf "%20p" 0) == " 0x0000000000000000"
@test (@sprintf "%-20p" 0) == "0x0000000000000000 "
elseif Sys.WORD_SIZE == 32
@test (@sprintf "%20p" 0) == " 0x00000000"
@test (@sprintf "%-20p" 0) == "0x00000000 "
else
@test false
end
# float / BigFloat
for (fmt, val) in (("%7.2f", " 1.23"),
("%-7.2f", "1.23 "),
("%07.2f", "0001.23"),
("%.0f", "1"),
("%#.0f", "1."),
("%.4e", "1.2345e+00"),
("%.4E", "1.2345E+00"),
("%.2a", "0x1.3cp+0"),
("%.2A", "0X1.3CP+0")),
num in (1.2345, big"1.2345")
@test @eval(@sprintf($fmt, $num) == $val)
end
# numeric spacing and various flag tests
function _test_flags(val, vflag::AbstractString, fmt::AbstractString, res::AbstractString, prefix::AbstractString)
vflag = string("%", vflag)
space_fmt = string(length(res) + length(prefix) + 3, fmt)
fsign = string((val < 0 ? "-" : "+"), prefix)
nsign = string((val < 0 ? "-" : " "), prefix)
osign = val < 0 ? string("-", prefix) : string(prefix, "0")
esign = string(val < 0 ? "-" : "", prefix)
esignend = val < 0 ? "" : " "
for (flag::AbstractString, ans::AbstractString) in (
("", string(" ", nsign, res)),
("+", string(" ", fsign, res)),
(" ", string(" ", nsign, res)),
("0", string(osign, "00", res)),
("-", string(esign, res, " ", esignend)),
("0+", string(fsign, "00", res)),
("0 ", string(nsign, "00", res)),
("-+", string(fsign, res, " ")),
("- ", string(nsign, res, " ")),
)
fmt_string = string(vflag, flag, space_fmt)
@test @eval(@sprintf($fmt_string, $val) == $ans)
end
end
for i in (
(42, "", "i", "42", ""),
(42, "", "d", "42", ""),
(42, "", "u", "42", ""),
(42, "", "x", "2a", ""),
(42, "", "X", "2A", ""),
(42, "", "o", "52", ""),
(42, "#", "x", "2a", "0x"),
(42, "#", "X", "2A", "0X"),
(42, "#", "o", "052", ""),
(1.2345, "", ".2f", "1.23", ""),
(1.2345, "", ".2e", "1.23e+00", ""),
(1.2345, "", ".2E", "1.23E+00", ""),
(1.2345, "#", ".0f", "1.", ""),
(1.2345, "#", ".0e", "1.e+00", ""),
(1.2345, "#", ".0E", "1.E+00", ""),
(1.2345, "", ".2a", "1.3cp+0", "0x"),
(1.2345, "", ".2A", "1.3CP+0", "0X"),
)
_test_flags(i...)
_test_flags(-i[1], i[2:5]...)
end
# Inf / NaN handling
@test (@sprintf "%f" Inf) == "Inf"
@test (@sprintf "%f" NaN) == "NaN"
@test (@sprintf "%f" big"Inf") == "Inf"
@test (@sprintf "%f" big"NaN") == "NaN"
# scientific notation
@test (@sprintf "%.0e" 3e142) == "3e+142"
@test (@sprintf "%#.0e" 3e142) == "3.e+142"
@test (@sprintf "%.0e" big"3e142") == "3e+142"
@test (@sprintf "%#.0e" big"3e142") == "3.e+142"
@test (@sprintf "%.0e" big"3e1042") == "3e+1042"
@test (@sprintf "%e" 3e42) == "3.000000e+42"
@test (@sprintf "%E" 3e42) == "3.000000E+42"
@test (@sprintf "%e" 3e-42) == "3.000000e-42"
@test (@sprintf "%E" 3e-42) == "3.000000E-42"
@test (@sprintf "%a" 3e4) == "0x1.d4cp+14"
@test (@sprintf "%A" 3e4) == "0X1.D4CP+14"
@test (@sprintf "%.4a" 3e-4) == "0x1.3a93p-12"
@test (@sprintf "%.4A" 3e-4) == "0X1.3A93P-12"
# %g
for (val, res) in ((12345678., "1.23457e+07"),
(1234567.8, "1.23457e+06"),
(123456.78, "123457"),
(12345.678, "12345.7"),
(12340000.0, "1.234e+07"))
@test (@sprintf("%.6g", val) == res)
end
for (val, res) in ((big"12345678.", "1.23457e+07"),
(big"1234567.8", "1.23457e+06"),
(big"123456.78", "123457"),
(big"12345.678", "12345.7"))
@test (@sprintf("%.6g", val) == res)
end
for (fmt, val) in (("%10.5g", " 123.4"),
("%+10.5g", " +123.4"),
("% 10.5g"," 123.4"),
("%#10.5g", " 123.40"),
("%-10.5g", "123.4 "),
("%-+10.5g", "+123.4 "),
("%010.5g", "00000123.4")),
num in (123.4, big"123.4")
@test @eval(@sprintf($fmt, $num) == $val)
end
@test( @sprintf( "%10.5g", -123.4 ) == " -123.4")
@test( @sprintf( "%010.5g", -123.4 ) == "-0000123.4")
@test( @sprintf( "%.6g", 12340000.0 ) == "1.234e+07")
@test( @sprintf( "%#.6g", 12340000.0 ) == "1.23400e+07")
@test( @sprintf( "%10.5g", big"-123.4" ) == " -123.4")
@test( @sprintf( "%010.5g", big"-123.4" ) == "-0000123.4")
@test( @sprintf( "%.6g", big"12340000.0" ) == "1.234e+07")
@test( @sprintf( "%#.6g", big"12340000.0") == "1.23400e+07")
# %g regression gh #14331
@test( @sprintf( "%.5g", 42) == "42")
@test( @sprintf( "%#.2g", 42) == "42.")
@test( @sprintf( "%#.5g", 42) == "42.000")
# hex float
@test (@sprintf "%a" 1.5) == "0x1.8p+0"
@test (@sprintf "%a" 1.5f0) == "0x1.8p+0"
@test (@sprintf "%a" big"1.5") == "0x1.8p+0"
@test (@sprintf "%#.0a" 1.5) == "0x2.p+0"
@test (@sprintf "%+30a" 1/3) == " +0x1.5555555555555p-2"
# chars
@test (@sprintf "%c" 65) == "A"
@test (@sprintf "%c" 'A') == "A"
@test (@sprintf "%3c" 'A') == " A"
@test (@sprintf "%-3c" 'A') == "A "
@test (@sprintf "%c" 248) == "ø"
@test (@sprintf "%c" 'ø') == "ø"
# escape %
@test (@sprintf "%%") == "%"
@test (@sprintf "%%s") == "%s"
@test_throws ArgumentError eval(:(@sprintf "%"))
# argument count
@test_throws ArgumentError eval(:(@sprintf "%s"))
@test_throws ArgumentError eval(:(@sprintf "%s" "1" "2"))
# no interpolation
@test_throws ArgumentError eval(:(@sprintf "$n"))
# type width specifier parsing (ignored)
@test (@sprintf "%llf" 1.2) == "1.200000"
@test (@sprintf "%Lf" 1.2) == "1.200000"
@test (@sprintf "%hhu" 1) == "1"
@test (@sprintf "%hu" 1) == "1"
@test (@sprintf "%lu" 1) == "1"
@test (@sprintf "%llu" 1) == "1"
@test (@sprintf "%Lu" 1) == "1"
@test (@sprintf "%zu" 1) == "1"
@test (@sprintf "%ju" 1) == "1"
@test (@sprintf "%tu" 1) == "1"
# strings
@test (@sprintf "%s" "test") == "test"
@test (@sprintf "%s" "tést") == "tést"
@test (@sprintf "%8s" "test") == " test"
@test (@sprintf "%-8s" "test") == "test "
@test (@sprintf "%s" "tést") == "tést"
@test (@sprintf "%s" :test) == "test"
@test (@sprintf "%#s" :test) == ":test"
@test (@sprintf "%#8s" :test) == " :test"
@test (@sprintf "%#-8s" :test) == ":test "
# reasonably complex
@test (@sprintf "Test: %s%c%C%c%#-.0f." "t" 65 66 67 -42) == "Test: tABC-42.."
#test simple splatting
@test (@sprintf "%d%d" [1 2]...) == "12"
# invalid format specifiers, not "diouxXDOUeEfFgGaAcCsSpn"
for c in "bBhHIjJkKlLmMNPqQrRtTvVwWyYzZ"
fmt_str = string("%", c)
@test_throws ArgumentError eval(:(@sprintf $fmt_str 1))
end
# combo
@test (@sprintf "%f %d %d %f" 1.0 [3 4]... 5) == "1.000000 3 4 5.000000"
# multi
@test (@sprintf "%s %f %9.5f %d %d %d %d%d%d%d" [1:6;]... [7,8,9,10]...) == "1 2.000000 3.00000 4 5 6 78910"
# comprehension
@test (@sprintf "%s %s %s %d %d %d %f %f %f" Any[10^x+y for x=1:3,y=1:3 ]...) == "11 101 1001 12 102 1002 13.000000 103.000000 1003.000000"
# @printf
@test_throws ArgumentError eval(:(@printf 1))