Nim - This repository contains the Nim compiler, Nim's stdlib, tools, and documentation. (mirror)

diff options

Diffstat (limited to 'web/nimblepkglist.nim')

0 files changed, 0 insertions, 0 deletions

discard """ output: "passed all tests." """ import math, strutils proc c_sprintf(buf, fmt: cstring) {.importc:"sprintf", header: "<stdio.h>", varargs.} proc floatToStr(f: float64): string = var buffer: array[128, char] c_sprintf(addr buffer, "%.16e", f) result = "" for ch in buffer: if ch == '\0': return add(result, ch) let testFloats = [ "0", "-0", "0.", "0.0", "-0.", "-0.0", "-1", "1", "1.", ".3", "3.3", "-.3", "-99.99", "1.1e10", "-2e100", "1.234e-10", "1.234e+10", "-inf", "inf", "+inf", "3.14159265358979323846264338327950288", "1.57079632679489661923132169163975144", "0.785398163397448309615660845819875721", "1.41421356237309504880168872420969808", "0.707106781186547524400844362104849039", "2.71828182845904523536028747135266250", "0.00097656250000000021684043449710088680149056017398834228515625" ] when not defined(windows): # Windows' sprintf produces niceties like -1.#INF... for num in testFloats: doAssert num.parseFloat.floatToStr.parseFloat == num.parseFloat doAssert "0".parseFloat == 0.0 doAssert "-.1".parseFloat == -0.1 doAssert "2.5e1".parseFloat == 25.0 doAssert "1e10".parseFloat == 10_000_000_000.0 doAssert "0.000_005".parseFloat == 5.000_000e-6 doAssert "1.234_567e+2".parseFloat == 123.4567 doAssert "1e1_00".parseFloat == "1e100".parseFloat doAssert "3.1415926535897932384626433".parseFloat == 3.1415926535897932384626433 doAssert "2.71828182845904523536028747".parseFloat == 2.71828182845904523536028747 doAssert 0.00097656250000000021684043449710088680149056017398834228515625 == "0.00097656250000000021684043449710088680149056017398834228515625".parseFloat doAssert 0.00998333 == ".00998333".parseFloat doAssert 0.00128333 == ".00128333".parseFloat doAssert 999999999999999.0 == "999999999999999.0".parseFloat doAssert 9999999999999999.0 == "9999999999999999.0".parseFloat doAssert 0.999999999999999 == ".999999999999999".parseFloat doAssert 0.9999999999999999 == ".9999999999999999".parseFloat echo("passed all tests.")


context:
space:
mode: