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builtin: new str(), hex() functions without C.printf

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This commit is contained in:
penguindark
2020-03-11 00:38:11 +01:00
committed by GitHub
parent de55a26cfe
commit 630913d872
4 changed files with 216 additions and 99 deletions
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14
vlib/builtin/array.v
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@ -395,13 +395,15 @@ pub fn (a []bool) str() string {
// of the byte elements of the array
pub fn (b []byte) hex() string {
mut hex := malloc(b.len * 2 + 1)
mut ptr := &hex[0]
for i in 0..b.len {
// QTODO
ptr += C.sprintf(ptr, '%02x', b[i])
mut dst_i := 0
for i in b {
n0 := i >> 4
hex[dst_i++] = if n0 < 10 { n0 + `0` } else { n0 + 87 }
n1 := i & 0xF
hex[dst_i++] = if n1 < 10 { n1 + `0` } else { n1 + 87 }
}
//return hex as string
return string(hex)
hex[dst_i] = `\0`
return tos(hex,dst_i)
}
// copy copies the `src` byte array elements to the `dst` byte array.