error compiling ....in pine_gestures.cpp: In function 'int ftoi(char*)': compiling from sxmo-pinephone-postmarketOS

[billyblackburn]

pine64-pinephone:~/pine_gestures$ make
g++ -std=c++11 -o pine_gestures pine_gestures.cpp
In file included from /usr/include/c++/12.2.1/cstring:42,
from pine_gestures.cpp:22:
pine_gestures.cpp: In function 'int ftoi(char*)':
pine_gestures.cpp:54:24: error: cannot convert 'std::nullptr_t' to 'int' in return
54 | return NULL;
| ^~~~
pine_gestures.cpp:59:24: error: cannot convert 'std::nullptr_t' to 'int' in return
59 | return NULL;
| ^~~~
pine_gestures.cpp: In function 'int get_arg(int, char**, char*, char*)':
pine_gestures.cpp:179:20: warning: format not a string literal and no format arguments [-Wformat-security]
179 | sprintf(arg_value, argv[i+1]);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
pine_gestures.cpp: In function 'void usage(char*)':
pine_gestures.cpp:191:21: warning: format '%s' expects a matching 'char*' argument [-Wformat=]
191 | printf("Usage: %s [--shake_cmd ] [--twist_cmd ]\n");
| ~^
| |
| char*
pine_gestures.cpp: In function 'int main(int, char**)':
pine_gestures.cpp:204:35: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
204 | int ret = get_arg(argc, argv, "--shake_cmd", shake_command);
| ^~~~~~~~~~~~~
pine_gestures.cpp:213:31: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
213 | ret = get_arg(argc, argv, "--twist_cmd", twist_command);
| ^~~~~~~~~~~~~
pine_gestures.cpp:233:13: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
233 | if(find("/sys/bus/i2c/drivers/inv-mpu6050-i2c", "0068", IMU_path))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pine_gestures.cpp:233:53: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
233 | if(find("/sys/bus/i2c/drivers/inv-mpu6050-i2c", "0068", IMU_path))
| ^~~~~~
pine_gestures.cpp:235:28: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
235 | if(!find(IMU_path, "iio:device", IMU_path))
| ^~~~~~~~~~~~
pine_gestures.cpp:292:20: warning: format not a string literal and no format arguments [-Wformat-security]
292 | printf(shake_command);
| ^~~~~~~~~~~~~
pine_gestures.cpp:306:20: warning: format not a string literal and no format arguments [-Wformat-security]
306 | printf(twist_command);
| ^~~~~~~~~~~~~
pine_gestures.cpp: In function 'bool find(char*, char*, char*)':
pine_gestures.cpp:87:1: warning: control reaches end of non-void function [-Wreturn-type]
87 | }
| ^
make: *** [Makefile:31: pine_gestures] Error 1