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 - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30530-11e908049b) Lines: 1467 1530 95.9 % Date: 2025-10-13 09:22:58 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
_intervalcmp	0
_mp_sub	0
scalepol2n	0
ZX_Uspensky_equal_yes	14
polgraeffe	14
ZX_Uspensky_no	21
ZX_Uspensky_equal	28
rootsdeg0	42
FFT	56
FFTinv	56
polmod_to_embed	84
FFT_i	98
sol_ok	3378
ZX_graeffe	5390
ZX_sturm	6395
fft2	7462
roots	8018
ZX_deg1root	15274
_sqrtnr	22709
polrootsbound_i	27293
polrootsbound	27300
RgX_normalize1	35901
ZX_realroots_irred	48653
realroots	50627
ZX_sturm_irred	116776
ZX_sturm_i	123171
polsolve	166722
split_pols	166722
splitcauchy	166731
solve_exact_pol	231145
cleanroots	231763
isexactpol	239753
roots_com	239753
roots_aux	239781
checkvalidpol	267060
QX_complex_roots	296419
_gen_zero	326122
fix_roots1	398468
conformal_mapping	467926
split_1	467930
split_0_1	468288
split_0_2	468289
logradius	493979
parameters	493983
split_fromU	493983
optimize_split	493984
split_2	493984
update_radius	493984
split_0	494348
refine_F	502369
dft	502373
all_roots	536124
clean_roots	536174
fix_roots	537227
a_posteriori_errors	537231
mygprec_special	537234
logmodulus	606757
logpre_modulus	606758
abs_update_r	778666
ind_maxlog2	902699
isexactscalar	931714
isreal	961913
initdft	996353
dual_modulus	1012487
usp	1126020
ZX_sturmpart	1128143
check_ab	1178770
tocomplex	1213991
isvalidcoeff	1230235
ZX_Uspensky	1313790
conformal_basecase	1403904
conformal_pol	1404024
fujiwara_bound_real	1406820
split_complete	1525920
homothetie	1610113
append_clone	1614187
logmin_modulus	1614803
root_error	1912588
mygprecrc_special	2179205
ZX_rescale2prim	2233754
cmp_complex_appr	2238581
fujiwara_bound	2271694
checkbound	2354669
refine_H	2460525
scalepol	4289457
mygprec_absolute	4340029
_mp_mul	4374569
logmax_modulus	4450934
bkeval_single_power	5235560
splitpoleval	5235817
newton_polygon	5507240
X2XP1	5990325
_mp_sqr	6298344
dblexp	6549071
quicktofp	6978975
RgX_gtofp_bit	7031607
abs_update	8005707
mydbllogr	9547264
homothetie2n	9957642
_gen_nored	11201985
eval_rel_pol	13138373
fft	14159411
_gen_one	14472778
ZX_to_ZiX	16458590
pol_to_gaussint	17589343
_mp_add	24660823
_mp_cmul	34764982
myshiftrc	35506270
homothetie_gauss	36497502
lower_bound	40955603
findpower	40956650
graeffe	49505392
mydbllog2r	56769399
mygprec	63758549
ZiX_sqr	99027751
myshiftic	135792378
mygprecrc	215193326
mydbllog2i	226434964
dbllog2	302691206

Generated by: LCOV version 1.16