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esp32_https_server/https/util.cpp at master · gmos/esp32_https_server · GitHub
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https
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util.cpp
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59 lines (46 loc) · 763 Bytes
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esp32_https_server
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https
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util.cpp
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/*
* util.cpp
*
* Created on: Dec 17, 2017
* Author: frank
*/
#
include
"
util.hpp
"
namespace
httpsserver
{
int
parseInt
(std::string s) {
int
i =
0
;
//
value
int
m =
1
;
//
multiplier
//
Check sign
size_t
x =
0
;
if
(s[
0
]==
'
-
'
) {
x =
1
;
}
else
if
(s[
0
]==
'
+
'
) {
x =
1
;
}
//
Convert by base 10
for
(; x < s.
size
(); x++) {
char
c = s[x];
if
(c >=
'
0
'
&& c<=
'
9
'
) {
i = i*
10
+ (c-
'
0
'
);
}
else
{
break
;
}
}
//
Combine both.
return
m*i;
}
std::string
intToString
(
int
i) {
if
(i==
0
) {
return
"
0
"
;
}
//
We need this much digits
int
digits =
ceil
(
log10
(i));
char
c[digits+
1
];
c[digits] =
'
\0
'
;
for
(
int
x = digits-
1
; x >=
0
; x--) {
char
v = (i%
10
);
c[x] =
'
0
'
+ v;
i = (i-v)/
10
;
}
return
std::string
(c);
}
}
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