Code reviewMediumcr-g157

Subject LifetimesLevel Mid–Senior~20 minCommon in Algorithms & data structures interviewsIndustries Software development

Question

Review this C++ helper that formats an error label.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

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Code to reviewcpp

1#include <cstdio>2 3const char* label_for(int code) {4    char buf[32];5    snprintf(buf, sizeof(buf), "err-%d", code);6    return buf;7}8 9void emit(int code) {10    const char* s = label_for(code);11    log_line(s);   // some logging sink12}

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