avoid-puts-use-printf
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更新时间2026年6月18日 23:19
Use when using puts() function for string output
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Use when using puts() function for string output
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Use when printf statements output strings without trailing newlines
Use when array is accessed with direct user input as index (0-based indexing)
Use when the program accesses a precomputed table using an offset (e.g., arr[n-1]) that introduces an arithmetic operation between the symbolic input and the index
Use when loop variables iterate over character values (e.g., ASCII codes) to represent different operations or choices
Use when code uses a loop to search for an input value in an array and then uses the found index for further computation
Use when code reads a fixed number of characters into an array and only accesses individual elements
| name | avoid-puts-use-printf |
| description | Use when using puts() function for string output |
A KLEE-coverage code transformation. Applying it rewrites C source so symbolic execution explores more of the program's behavior.
When using puts() function for string output
Replace puts() calls with printf() calls, adding explicit newline characters where needed
KLEE may have better symbolic modeling for printf() than puts(), allowing more efficient constraint solving and path exploration during symbolic execution
Before:
#include <stdio.h>
int main(){
int X;
scanf("%d", &X);
if(X ==3 || X==5 || X==7) puts("YES");
else puts("NO");
return 0;
}
After:
#include<stdio.h>
int main(void) {
int X;
scanf("%d", &X);
if (X == 3 || X == 5 || X == 7)
printf("YES\n");
else
printf("NO");
}
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