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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* Copyright (c) 2026-present Eclipse ThreadX contributors |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** Utility (Utility) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_utility.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_utility_ltoa PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This service converts a long integer value into an ASCII string. */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* value Long integer value to convert */ |
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/* return_buffer Destination buffer for ASCII */ |
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/* string */ |
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/* return_buffer_size Size of destination buffer */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* Application Code */ |
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/* GUIX Internal Code */ |
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/* */ |
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/**************************************************************************/ |
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42358 |
UINT _gx_utility_ltoa(LONG value, GX_CHAR *return_buffer, UINT return_buffer_size) |
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{ |
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LONG temp_val; |
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GX_CHAR temp_buf[20]; |
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GX_CHAR *mirror; |
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GX_CHAR *putchar; |
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INT quotient; |
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INT sign = 0; |
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temp_val = value; |
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✓✓ |
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if (value < 0) |
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{ |
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sign = -1; |
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temp_val = -value; |
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} |
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/* build the string in our temp_buf. The string will |
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be in reverse (mirrored) order, we will fix that |
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when we copy into the output buffer |
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*/ |
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mirror = temp_buf; |
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do |
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{ |
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quotient = temp_val % 10; |
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temp_val = temp_val / 10; |
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quotient = quotient | 0x30; |
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*mirror++ = (GX_CHAR)quotient; |
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✓✓ |
80920 |
} while (temp_val != 0); |
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/* put a negative sign at the end if needed */ |
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✓✓ |
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if (sign != 0) |
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{ |
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*mirror++ = '-'; |
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} |
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/* now copy the result back into the caller's buffer, |
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being careful not to exceed the buffer size |
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*/ |
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mirror--; |
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putchar = return_buffer; |
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✓✓✓✓
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while (mirror >= temp_buf && return_buffer_size > 1) |
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{ |
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*putchar++ = *mirror--; |
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return_buffer_size--; |
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} |
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/* termniate the return string */ |
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*putchar = 0; |
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return GX_SUCCESS; |
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} |
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