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Q&A

Posts tagged compiler-warnings

For questions dealing with non-blocking messages emitted by a compiler when it finds potential problems in code or configuration.

This tag doesn't have a detailed wiki yet.

71%
+3 −0
Q&A Assert that some code is not present in the final binary, at compile or link time.

I'd like to assert that some code can be optimized out, and is not present in the final binary object. #define CONSTANT 0 #if (!CONSTANT) [[landmine_A]] #endif static int foo(void); void...

1 answer  ·  posted 5mo ago by alx‭  ·  last activity 5mo ago by alx‭

87%
+12 −0
Q&A What compiler options are recommended for beginners learning C?

When reading questions about C programming from beginners, I very often see them describing peculiar run-time errors and crashes, segmentation faults and similar. They have spent a lot of time chas...

1 answer  ·  posted 1y ago by Lundin‭  ·  edited 1y ago by Lundin‭

42%
+1 −2
Q&A What might happen if I ignore warning?

#include &lt;iostream&gt; using namespace std; int linearSearch(int array[], int n, int key){ for(int i=0;i&lt;=n;i++){ if(array[i]==key){ return i; } } } int main() { int ...

2 answers  ·  posted 1y ago by Anonymous‭  ·  last activity 1y ago by Lundin‭

77%
+5 −0
Q&A Warn of implicit cast in a function's arguments with GCC?

In the C program below, I make a mistake and call the function with (ld, ld) instead of (d, ld). #include &lt;stdio.h&gt; #include &lt;limits.h&gt; void print_int_long(int n, long l){ pri...

2 answers  ·  posted 1y ago by Quasímodo‭  ·  last activity 1y ago by Lundin‭

85%
+10 −0
Q&A Scheme for cross-platform warning control?

tl;dr I'd like to learn a compact, cross-compiler way of selectively suppressing compiler warnings. Consider the case where you really mean to make an exact floating-point comparison using ==, o...

1 answer  ·  posted 2y ago by dmckee‭  ·  last activity 2y ago by Someone‭

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