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Avoid float-double-conversion (#7559)

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Converting floats to doubles is very expensive on esp8266, so prefer
calculations or comparisons as float. This saves 10% (20 bytes) of the
String::parseFloat() code size and probably quite a bit of runtime
overhead.
This commit is contained in:
Dirk Mueller
2020-08-28 23:09:44 +02:00
committed by GitHub
parent 59873908c4
commit 953dfd945f
2 changed files with 6 additions and 6 deletions
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8
libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp
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@ -369,10 +369,10 @@ WiFiPhyMode_t ESP8266WiFiGenericClass::getPhyMode() {
*/
void ESP8266WiFiGenericClass::setOutputPower(float dBm) {
if(dBm > 20.5) {
dBm = 20.5;
} else if(dBm < 0) {
dBm = 0;
if(dBm > 20.5f) {
dBm = 20.5f;
} else if(dBm < 0.0f) {
dBm = 0.0f;
}
uint8_t val = (dBm*4.0f);