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ISO/IEC 9899:2011 Section 7.21.5.5, "The setbuf function," Section 7.21.6.7, "The sscanf function," Section 7.21.9.2, "The fseek function," 7.21.9.5, "The rewind function," Section 7.22.1.2, "The atoi, atol, and atoll functions," and Section 7.22.1.4, "The strtol, strtoll, strtoul, and strtoull functions"
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