Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report

Current view: top level - basemath - polarit3.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30733-eb2d773d38) Lines: 1906 2201 86.6 % Date: 2026-03-03 09:24:12 Functions: 205 228 89.9 % Legend: Lines: hit not hit

Function Name	Hit count
FlxX_resultant	0
FlxX_resultant_pre	0
FpXQX_XpN_powu	0
FpX_composedprod	0
FqC_Fq_mul	0
FqC_add	0
FqC_sub	0
FqM_add	0
FqM_sub	0
FqXQ_matrix_pow	0
FqXQ_powers	0
Fq_invsafe	0
Fq_neg_inv	0
QXQ_intnorm	0
RgM_is_FpM	0
RgV_is_FpV	0
ZXQXQ_minpoly	0
ZXQXQ_minpoly_slice	0
ZXQXQ_minpoly_worker	0
ZX_incremental_CRT	0
ffinit_rand	0
init_Flxq	0
vecbinomial_Fp	0
QX_disc	7
FpX_FpXY_resultant	15
fffrobenius	42
QX_resultant	56
_ZXQ_powu	56
err_compo	84
ffextend	91
FpX_composedsum	93
_FpX_composedsum	93
FqC_FqV_mul	105
nfX_resultant	119
ffinvmap	133
RgV_to_FpV	140
ffnbirred0	140
ffembed	189
ffeltmaprel_i	252
ffmaprel	252
ffmaprel_i	252
to_ZX	252
FpX_FpXY_eval_resultant	284
ZXQX_composedsum	315
ZXQX_composedsum_bound	315
nf_direct_compositum	315
residual_characteristic	336
Z_init_CRT	357
ZXQX_composedsum_slice	359
ZXQX_composedsum_worker	359
ffcompomap	420
Fp_XpN_powu	434
ZX_composedsum	511
ffinit	567
ffinit_Artin_Schreier_2	600
ffsumnbirred	616
ZXM_incremental_CRT	653
ZXM_init_CRT	679
FpX_Fp_translate_basecase	700
RgX_RgXY_ResBound_1	854
ffinit_Artin_Schreier	957
ffmap	1036
FqX_Fq_sub	1059
FpX_Fp_translate	1134
char_update_prime	1225
ffpartmapimage	1260
FpXV_composedsum	1588
ffinit_fact	1588
fpinit	1681
FqM_red	1701
ZXQ_minpoly	1701
FpXM_center	1800
Flx_Lazard	1973
FpXY_FpXQ_evaly	2072
checkmap	2261
FlxX_resultant_subres	2510
ffeltmap_i	2709
ffnbirred	3178
RgX_norml1_1	3283
RgX_is_FpXQX	3332
ZXQ_minpoly_slice	3523
ZXQ_minpoly_worker	3523
RgX_to_FpXQX	3824
ZXQX_disc_all	3941
ZXQX_resultant_all	4004
ZXQX_resultant_bound	4007
_Fq_s	4151
nfX_disc	4172
charact_res	4200
ZXQX_resultant_bound_i	4322
ffmap_i	4459
get_Fq_field	4725
ZXQX_resultant_slice	4925
ZXQX_resultant_worker	4925
FpXC_center	5467
char_update_int	5873
ZM_init_CRT	5985
FlxY_to_FlyX	6120
Flx_FlxY_resultant	6120
fpinit_check	7332
FlxX_pseudorem	7497
Z_incremental_CRT	7525
ZM_incremental_CRT	7787
RgX_RgXY_ResBound	8207
FqM_to_FlxqM	8708
sqrN2	9061
_Fq_inv	9331
ZX_compositum_lambda	9705
ZX_compositum	9708
QXQ_charpoly	9793
ZX_ZXY_ResBound_1	10215
ZX_composedsum_i	10215
ZX_composedsum_slice	10484
ZX_composedsum_worker	10484
ZXQX_resultant_prime	11041
FqXY_eval	14623
Fq_powu	15050
QXQ_norm	19418
ZX_ZXY_resultant_LERS	22336
ZXQ_charpoly_sqf	22600
Flx_resultant_set_dglist	23720
FqC_red	24058
addii_abs	25971
characteristic	28007
ffinit_fact_Flx	28976
flinit	31902
ZX_norml1_1	32064
ZX_init_CRT	32466
QXQ_div	33207
FqX_Fq_translate	33880
FpXQX_FpXQ_translate	33887
FpXQX_FpXQ_translate_basecase	33887
FpXQX_normalize	38189
_Fq_equal0	38388
FqV_roots_to_pol	40457
ZX_ZXY_rnfequation_lambda	40508
Fq_Fp_mul	43985
RgX_to_FqX	49137
RgM_to_FqM	52325
init_Flxq_i	52942
init_Fq	54652
init_Fq_i	55219
FqX_Fq_add	55832
ZX_resultant	55867
ZX_ZXY_resultant_all	60114
ZX_ZXY_rnfequation	60553
Rg_is_FpXQ	60648
ZX_ZXY_resultant	78558
Fq_halve	81417
Fq_inv	89297
FqXY_evalx	97391
FqC_to_FlxqC	109023
FqV_red	109467
RgM_to_Flm	118296
QXQ_div_slice	121155
QXQ_div_worker	121155
ZX_ZXY_resultant_slice	124317
ZX_ZXY_resultant_worker	124317
FqX_Fq_mul_to_monic	133414
QXQ_inv	146001
swap_vars	146148
ZX_incremental_CRT_raw	148351
flinit_check	149479
monomialcopy	156275
ZX_ZXY_ResBound	165926
Fq_sqrtn	170786
charact	175168
log2N2	176138
QXQ_inv_slice	212723
QXQ_inv_worker	212723
RgC_to_FqC	219128
RgM_to_FpM	222349
_Fq_mul	243341
_Fq_red	303247
_Fq_neg	315028
pol_x_powers	325905
Fq_div	343791
_Fq_add	362523
ZX_ZXY_resultant_prime	363667
Flx_FlxY_resultant_polint	367278
RgV_to_Flv	369001
FqX_eval	391144
QXQ_sqr	407060
Fq_mulu	490264
Fq_sqr	611236
QXQ_mul	845492
FpXV_FpC_mul	848967
ZXX_ResBound	1010533
ZXX_resultant_interp	1010536
ZXX_resultant	1010572
ZXX_resultant_slice	1015852
ZXX_resultant_worker	1015852
Fq_neg	1080364
Fq_pow	1088237
FlxX_resultant_polint	1118120
ZXX_resultant_prime	1118120
ZX_discbound	1136109
ZX_disc	1139370
ZX_disc_all	1201445
ZXQ_charpoly	1247408
Rg_to_FpXQ	1287772
ZX_norml1	1296710
ZX_resultant_all	1348305
ZX_resultant_slice	1493875
ZX_resultant_worker	1493882
RgC_to_FpC	1751090
Fq_sqrt	1893010
ZXX_is_sparse	2021129
RgX_is_ZXX	2021389
Flx_resultant_all	2090270
FlxY_evalx_drop	2114057
resbound	2186988
gen_crt	2283486
gen_inccrt	3071083
RgX_to_FpX	3314524
ZX_resultant_prime	3863036
FlxY_eval_resultant	4348273
Fl_chinese_coprime	5162946
Flx_FlxY_eval_resultant	5519134
Fq_mul	8563212
Fq_sub	8563740
gen_inccrt_i	8784279
primelist	9372336
Fq_add	11558229
monomial	12541554
RgX_is_FpX	28201404
Rg_to_Fp	52252362
Rg_is_Fp	73215020

Generated by: LCOV version 1.16