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Maintenance: gps

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overflow prevention
This commit is contained in:
Scott Giese 2021-02-21 10:07:27 -06:00
parent cd5ec691af
commit 6e64bd12e0
1 changed files with 9 additions and 6 deletions
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15
src/Instrumentation/gps.cxx
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@ -43,16 +43,19 @@ static const char* makeTTWString(double TTW)
if ((TTW <= 0.0) || (TTW >= 356400.5)) { // 99 hours
return "--:--:--";
}
unsigned int TTW_seconds = (int) (TTW + 0.5);
unsigned int TTW_minutes = 0;
unsigned int TTW_hours = 0;
static char TTW_str[9];
unsigned TTW_seconds = (unsigned) (TTW + 0.5);
unsigned TTW_minutes = 0;
unsigned TTW_hours = 0;
TTW_hours = TTW_seconds / 3600;
TTW_minutes = (TTW_seconds / 60) % 60;
TTW_seconds = TTW_seconds % 60;
snprintf(TTW_str, 9, "%02d:%02d:%02d",
static char TTW_str[16];
snprintf(TTW_str, 16, "%02u:%02u:%02u",
TTW_hours, TTW_minutes, TTW_seconds);
return TTW_str;
}