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examples: gcc8 fixes for -Werror=format-truncation

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Fixes below issues:
tm1637.cxx:69:29: error: "%2d%02d" directive output may be truncated writing between 5 and 15 bytes into a destination of size 5 [-Werror=format-truncation=]
          snprintf(myTime, 5, "%2d%02d", (hour + timezone + 24) % 24, min);

jhd1313m1.c:65:49: error: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 8 [-Werror=format-truncation=]
          snprintf(str, sizeof(str), "Hello World %d", ndx);

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
This commit is contained in:
Sumit Garg 2018-08-09 18:06:12 +05:30
parent c2ce3e8222
commit 635868583d
2 changed files with 3 additions and 3 deletions
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4
examples/c++/tm1637.cxx
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@ -49,7 +49,7 @@ main(int argc, char** argv)
int timezone = -7; // Your UTC offset int timezone = -7; // Your UTC offset
time_t rawtime; time_t rawtime;
struct tm* gmt; struct tm* gmt;
char myTime[5]; char myTime[15];
fprintf(stdout, "TM1637 Display Example\n"); fprintf(stdout, "TM1637 Display Example\n");
signal(SIGINT, sig_handler); signal(SIGINT, sig_handler);
@ -66,7 +66,7 @@ main(int argc, char** argv)
int hour = (gmt) ? gmt->tm_hour : 0; int hour = (gmt) ? gmt->tm_hour : 0;
int min = (gmt) ? gmt->tm_min : 0; int min = (gmt) ? gmt->tm_min : 0;
// Format and store the time in 24 hour format // Format and store the time in 24 hour format
snprintf(myTime, 5, "%2d%02d", (hour + timezone + 24) % 24, min); snprintf(myTime, 15, "%2d%02d", (hour + timezone + 24) % 24, min);
myDisplay.write(myTime); // Write to display as string myDisplay.write(myTime); // Write to display as string
myDisplay.setColon(point ^= true); // Toggle the dots on the display myDisplay.setColon(point ^= true); // Toggle the dots on the display

2
examples/c/jhd1313m1.c
View File

@ -51,7 +51,7 @@ int main(int argc, char **argv)
} }
int ndx = 0; int ndx = 0;
char str[20]; char str[23];
uint8_t rgb[7][3] = { uint8_t rgb[7][3] = {
{0xd1, 0x00, 0x00}, {0xd1, 0x00, 0x00},
{0xff, 0x66, 0x22}, {0xff, 0x66, 0x22},