BUG: running C examples in develop throws an error

[Pranavchiku]

Description

% make examples-c EXAMPLES_FILTER=".*/math/base/special/min/.*"

Running example: /Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/min/examples/c/example.c
Resolving package path...
Package path: /Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/min
Resolving package manifest...
Successfully resolved package manifest.
Resolving include directories...
Resolving source files...
Resolving libraries...
Resolving library paths...
Compiling example...
/Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/min/src/main.c:56:2: warning: no newline at end of file [-Wnewline-eof]
}
 ^
1 warning generated.
example.c:29:25: error: call to undeclared function 'rand'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
        x = ( ( (double)rand() / (double)RAND_MAX ) * 200.0 ) - 100.0;
                        ^
example.c:29:42: error: use of undeclared identifier 'RAND_MAX'
        x = ( ( (double)rand() / (double)RAND_MAX ) * 200.0 ) - 100.0;
                                         ^
example.c:30:42: error: use of undeclared identifier 'RAND_MAX'
        y = ( ( (double)rand() / (double)RAND_MAX ) * 200.0 ) - 100.0;
                                         ^
example.c:34:2: warning: no newline at end of file [-Wnewline-eof]
}
 ^
1 warning and 3 errors generated.
make[1]: *** [example.out] Error 1
Error when attempting to compile example.
ERROR: An error was encountered during execution.

make: *** [examples-c] Error 1

% make examples-c EXAMPLES_FILTER=".*/math/base/special/minabs/.*" 

Running example: /Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/minabs/examples/c/example.c
Resolving package path...
Package path: /Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/minabs
Resolving package manifest...
Successfully resolved package manifest.
Resolving include directories...
Resolving source files...
Resolving libraries...
Resolving library paths...
Compiling example...
/Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/minabs/src/main.c:40:2: warning: no newline at end of file [-Wnewline-eof]
}
 ^
1 warning generated.
/Users/pranavchiku/repos/stdlib-js/stdlib/lib/node_modules/@stdlib/math/base/special/min/src/main.c:56:2: warning: no newline at end of file [-Wnewline-eof]
}
 ^
1 warning generated.
example.c:29:25: error: call to undeclared function 'rand'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
        x = ( ( (double)rand() / (double)RAND_MAX ) * 1000.0 ) - 500.0;
                        ^
example.c:29:42: error: use of undeclared identifier 'RAND_MAX'
        x = ( ( (double)rand() / (double)RAND_MAX ) * 1000.0 ) - 500.0;
                                         ^
example.c:30:42: error: use of undeclared identifier 'RAND_MAX'
        y = ( ( (double)rand() / (double)RAND_MAX ) * 1000.0 ) - 500.0;
                                         ^
example.c:34:2: warning: no newline at end of file [-Wnewline-eof]
}
 ^
1 warning and 3 errors generated.
make[1]: *** [example.out] Error 1
Error when attempting to compile example.
ERROR: An error was encountered during execution.

make: *** [examples-c] Error 1

Related Issues

NA.

Questions

No.

Demo

No response

Reproduction

shown above

Expected Results

examples run successfully

Actual Results

examples failed to run

Version

latest develop

Environments

N/A

Browser Version

No response

Node.js / npm Version

No response

Platform

No response

Checklist

• Read and understood the Code of Conduct.
• Searched for existing issues and pull requests.

[kgryte]

Related #1712 and #1718

[Pranavchiku]

Can we not set CI to run C examples? But then running all C examples will take a lot of time and computation.

[kgryte]

Yes, we've created an internal TODO for this--that is running C examples as part of pull requests.