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Merge pull request #4 from WeActStudio/main

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This commit is contained in:
ZYQ-FEIYUE
2022-11-21 22:54:08 +08:00
committed by GitHub
parent 2106119b9f c668023344
commit e1ca5ca824
3 changed files with 13 additions and 11 deletions
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2
cores/arduino/WString.cpp
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@@ -735,7 +735,7 @@ void String::remove(unsigned int index, unsigned int count)
} }
char *writeTo = buffer + index; char *writeTo = buffer + index;
len = len - count; len = len - count;
strncpy(writeTo, buffer + index + count, len - index); memmove(writeTo, buffer + index + count, len - index);
buffer[len] = 0; buffer[len] = 0;
} }

2
cores/arduino/libcore/i2c.c
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@@ -65,7 +65,7 @@ void I2Cx_Init(i2c_type *I2Cx, uint32_t baudRate)
void I2Cx_ClearADDRFlag(i2c_type* I2Cx) void I2Cx_ClearADDRFlag(i2c_type* I2Cx)
{ {
__IO uint32_t tmpreg; __attribute__((unused)) __IO uint32_t tmpreg;
tmpreg = I2Cx->sts1; tmpreg = I2Cx->sts1;

18
cores/arduino/libcore/timer.c
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@@ -77,17 +77,19 @@ void Timer_ClockCmd(tmr_type* TIMx, bool Enable)
static float Qsqrt(float number) static float Qsqrt(float number)
{ {
union {
long i; long i;
float x2, y; float y;
} cast;
float x2;
const float threehalfs = 1.5f; const float threehalfs = 1.5f;
x2 = number * 0.5f; x2 = number * 0.5f;
y = number; cast.y = number;
i = *(long*)&y; cast.i = 0x5f3759df - (cast.i >> 1);
i = 0x5f3759df - (i >> 1); cast.y = cast.y * (threehalfs - (x2 * cast.y * cast.y));
y = *(float*)&i; cast.y = cast.y * (threehalfs - (x2 * cast.y * cast.y));
y = y * (threehalfs - (x2 * y * y)); return 1.0f / cast.y;
y = y * (threehalfs - (x2 * y * y));
return 1.0f / y;
} }
/** /**